The Cilantro Effect in Co-Parenting

Photo Credit: Diva Plavalaguna via Pexels

“When the structure changes, the behaviour becomes visible.” – Salvador Minuchin

There are few things more disorienting than discovering, after a divorce, that the person you raised children with does not see parenting the way you thought they did. It often starts with a moment that feels almost absurd.

You find yourself thinking, “I was married to this person for decades. We raised a child together. And now they are drawing a hard line about something they never once objected to before.”

Maybe it is an activity, a boundary, a value, or a rule that suddenly matters deeply.

It can feel like the ground shifts under your feet, not just because you disagree, but because you cannot figure out where this opinion came from. The impulse is to assume something has changed, or worse, that the other parent is being an ass-hat for the sake of ass-hattedness.

In many cases, neither is true.

The difference that was always there

Disagreements about how to raise children are as old as the discourse itself. Parents have always differed in their views on discipline, structure, freedom, risk, expectations, and priorities. What changes after divorce is not the existence of those differences, but their visibility.

In many intact households, there is an unspoken division of labour. One parent tends to drive the day-to-day decisions. They manage routines, set expectations, and make hundreds of small calls every week that keep family life moving. The other parent may be loving, present, and supportive, but they are not steering the ship. They help when needed, backstop the system, and keep things running smoothly without shaping the route.

That arrangement can work well for years. Not because both parents agree on everything, but because not every disagreement needs airtime when the household feels stable. However… over time… the absence of open conflict can quietly get mistaken for agreement.

But agreement was never the same as alignment.

What divorce changes

When a marriage ends, that structure disappears. The parent who was not steering now has their own household, their own authority, and their own space to decide what matters and what does not.

With that autonomy often comes something that feels jarring to the other side. Opinions that once stayed quiet now move to the foreground.

This doesn’t usually happen because someone is trying to sabotage the other parent; in many cases, those views existed all along. They just never needed to be voiced when someone else was steering. What looks like opposition is often autonomy finally meeting long-held beliefs.

Divorce does not invent these differences. It exposes them.

Why it feels so personal

The reason this dynamic hurts is not just because of the disagreement itself, it’s because it rewrites the story you thought you shared.

It forces a painful re-examination of the past.

“If this mattered to you, why didn’t you say anything before?”

“Were we ever actually on the same page?”

That realization can feel like betrayal, even when it is not intended that way. It challenges the idea that you were co-authoring the same parenting philosophy when, in reality, you were often operating on parallel tracks.

The cilantro effect

This is where a metaphor helps make sense of what logic cannot.

Some differences are not intellectual. They are visceral. Cilantro is a perfect example. One person loves it. Another cannot stand it. Neither is wrong, but pretending it should not matter only creates tension.

Parenting beliefs can work the same way. What one parent sees as reasonable, the other experiences as deeply uncomfortable. The problem is not the difference itself. It is how suddenly that difference becomes unavoidable after divorce.

What once stayed buried under shared routines and compromises now sits right on the surface.

When children end up in the middle

The real risk is not that two homes operate differently. Children can tolerate difference far better than adults often assume. The risk is what happens when adult disagreement leaks into the child’s emotional space.

• When rules become symbolic.

• When boundaries feel like loyalty tests.

• When children start editing themselves depending on which house they are in.

That is when confusion sets in. Not because the parents disagree, but because the disagreement is no longer being held by the adults.

Holding the tension where it belongs

The work of co-parenting after divorce is not about eliminating differences; it is about learning how to carry them without handing them down.

That means recognizing that many of these conflicts are not new; they are just newly visible. It means understanding that silence in a marriage does not equal agreement. And it means accepting that discomfort between adults is often preferable to confusion for children.

Some differences were always there. Divorce simply removed the buffer that kept them quiet.

The goal is not to make both homes identical, but to ensure children are not carrying adult tension that was never meant for them.

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