Hi there

My DP has a daughter with his ex and they both currently live in the US.

I guess my perspective is this - the amount of CS he is paying is not very much but presumably it has been assessed properly and that's what he should be paying. Based on that minimal amount, I wouldn't think he has much to pay for private schooling, though having said that, I'm not sure how much her schooling would cost. So despite his verbal agreement, I think you just have to decide whether you and DH can afford it without help from him.

But I definitely wouldn't tell her.

We have had a similar issue with DP's ex. My step-daughter came to live with us for eight months last year and DP's ex refused to pay a cent even though DP has religiously paid $500 per month in CS while his daughter lived with his ex. So while it was very tempting for both of us to tell her that her mom was an unfair, deadbeat so and so, we honestly didn't think that was fair to lumber her with a problem that should be between the adults to sort out.