LC/and child support, etc

I had previously asked my ex if he would help out with camp for D for the summer. I get child support but at one point he mentionned helping out -so a few weeks ago I asked him and he said "sure, let me know how I can help out". Mind you this response was attached to a request for a visit(via text), (which he knew I could deny)-how manipulative, right??

So, he gave me his final answer tonight via email (after 2 weeks) and said he" didnt feel comfortable paying for part of camp, as he is spending so much money getting her to his state via airplane and other expenses".

OK, I get that and I also get that I do indeed get support from him, but he offerred and child support does not include 'extra curricular' activities.

It was really difficult for me to get this email and I had to write here. I am buying a house for my girls and I and I dont have a lot of money, or fancy things. Frankly, I go without on some things, so my kids can have more. So, on one pt I get where he is coming from but on the other hand I see him as selfish, because bottom line is D suffers and doesnt get to do as much as she could. I know shell be Ok without the horse camp, or I will make it happen on my own.

I am just dropping it because of LC but it is a hard pill to swallow. And it was very manipulative of him to say he would just so I would say yes to a visit!!!!!!!! What else would I expect from a NArc.

I have to see him Sunday, how should my demeaner be??? First handoff in awhile and I am a little nervous (but mostly just dont want to see him because he is a PRIk and I dont want to stir stuff up again in my head) And I cant get anyone else to do the handoff through airport security.
l s