STBXW still isn't working, so I'm paying for just about anything that D needs right now. Conversations go like "Hey, D's hair is getting thick and she needs a haircut." "Ok, do you want to take her this weekend, or should I just do it during the week?" "I'll take her, but I'm broke." "Fine, I'll give money to mom." ...and that's about it. There is, thankfully, NOT a lot of conversation between the two of us. It's normally quite peaceful these days. I haven't even seen STBXW in a month, and only saw her twice in the month before that.
I guess the problem is that I'm still trying to co-parent. It's not really working (rereading this thread makes that pretty damn clear). I think the haircut thing drove that point home for good.
By the way, I agree completely with Vapo. I ignored STBXW's screaming and D got her haircut that day. She looks great, she's happy, and at bath time last night it took less than half as long to blow it out and brush (thank god).