The fear of losing the other parent too

Your child has started checking. Where will you be. When will you be back. What happens if you don't come. They want to know your plans in detail, get anxious when you're a few minutes late, call to make sure you're still there. Or it shows up at the Relay, a child suddenly clingy and distressed about leaving one parent, as if the leaving might be permanent. Underneath the questions and the clinginess is a fear the child may never say out loud, and it's one of the most common and least spoken fears in the whole separation experience. If one parent could go, the other one could too.

This is a gentle one, because it sits close to the heart of what frightens a child about separation. If you're a parent reading this, it can ache to realise your child is carrying this fear. It makes sense that they are, and it's something you can directly help with, which is the good news inside the hard part.

The lesson the child learned

Before the separation, most children operate on an unspoken assumption that their parents are permanent fixtures, simply always there, like the ground. The separation breaks that assumption. The child learns, in the most concrete way possible, that a parent can stop living with them, that the family they counted on can change, that the people who were always there might not be. Whatever the adults intended, the lesson the child absorbs is that the permanence they assumed isn't guaranteed.

Once a child has learned that one parent can go, the logical, frightening extension is obvious to them. If that could happen, what stops the other one from going too? This isn't irrational. From the child's point of view, it's a reasonable inference from the evidence they were just handed. The bedrock assumption of parental permanence has been disproven once, and a child who's learned that bedrock can move is understandably anxious about whether it will move again.

This fear underlies a great deal of post-separation behaviour. The clinginess, the checking, the anxiety at separations, the difficulty at the Relay, the need to track where parents are, the trouble at bedtime and at the school gate, are often all the same fear in different clothes. The child is monitoring the security of their remaining attachments because they've learned those attachments can be lost. Read that way, a lot of scattered behaviours resolve into one underlying worry, and one underlying worry is something you can actually address.

Why reassurance in words isn't enough

The natural response is to reassure in words. I'm not going anywhere. I'll always be here. I'll never leave you. And saying this matters, words of reassurance have their place. But words alone don't resolve this fear, for a specific reason. The child once assumed permanence and was proven wrong. They've learned not to fully trust the assumption of always-there. So a verbal promise of permanence, however sincere, lands on a child who has recent evidence that such permanence can fail. The words are necessary but not sufficient.

What actually reassures a child who fears losing a parent is not the promise but the repeated experience of the parent being reliably, predictably there. Reliability is the real reassurance, demonstrated over and over, not declared once. Every time you say you'll be back at a certain time and you are, every time you show up at the Relay as expected, every time the child reaches for you and finds you there, the fear gets a small piece of disconfirming evidence. The child's nervous system learns, slowly, through accumulated experience, that this attachment holds, even though the other arrangement changed.

This is why consistency and predictability matter so much for a frightened child. They're not just nice routines; they're the active ingredient in healing the fear. A parent who is reliably where they said they'd be, when they said they'd be there, is rebuilding the child's shattered assumption of permanence one kept promise at a time. The reliability is the medicine. The words are the label on the bottle.

Both parents proving the fear wrong

The fear is about losing either parent, which means both parents are part of the answer, and this is where the co-parenting relationship does quiet, important work.

Each parent reassures the fear by being reliably present in their own time with the child, showing up, keeping the schedule, being predictably there. But there's also a shared piece. The fear is fed by instability and eased by stability, so a co-parenting arrangement that is itself stable and predictable, with a reliable schedule, calm Relays, and a sense that the structure holds, directly soothes the child's underlying worry. A chaotic, unpredictable arrangement keeps the fear alive by confirming that things are unstable. A steady one tells the child, through lived experience, that even though the family changed shape, the new shape is solid and their attachments within it are secure.

This is one of the many places where the parents staying coordinated and steady, even when they don't like each other, pays off directly in the child's wellbeing. The child watching two parents who reliably show up, who keep a predictable structure, who both stay present, is a child accumulating the evidence that disconfirms their deepest fear. Neither parent can do it alone. Both being reliable is what proves the fear wrong.

Naming it gently

While reliability does the deep work, gently naming the fear can also help, especially for an older child. A child carrying an unspoken fear of losing a parent often feels less alone with it once it's named. Sometimes after a change like this, kids worry that they might lose their other parent too. That's a really normal worry. And here's the thing, both your mum and your dad are always going to be your parents, and we're both always going to be here for you, even though we live in different homes. You name the fear, normalise it, and pair it with the reassurance, knowing that the reassurance will be confirmed over time by your reliable presence.

For a younger child who can't articulate the fear, the naming is lighter and the reliability matters even more, since they'll absorb the reassurance through experience more than through explanation. Either way, the message is the same. The fear makes sense, you understand it, and you'll prove it wrong by being there, again and again, until the child's body relearns that they are not going to lose you.

The line you carry

This is one of the most common and least spoken fears after a separation, and it makes sense: a child who learned that one parent can go reasonably worries the other might follow. It underlies much post-separation behaviour, the clinginess, the checking, the separation anxiety, all the same fear in different clothes. Words of reassurance matter but aren't enough, because the child has evidence that permanence can fail; what heals the fear is the repeated, lived experience of a parent being reliably, predictably there. Both parents proving it wrong through steady presence, and a stable co-parenting structure, are the real medicine, alongside gently naming the fear so the child isn't alone with it.

Your child is afraid of losing you because they learned that losing a parent is possible. You answer that fear not mainly with promises, but by being there, reliably, until their heart relearns that you will be.

Your child learned that a parent can go. You teach them the deeper truth the only way it can be taught, by being reliably there, again and again, until they believe it in their body.