SO says I should pay his bills as a gift to his kids for Christmas...

Last night I am at work late and SO texts me and says he messed up and spent all his money on Christmas for his kids and has nothing left. So I asked him what I'm supposed to give his kids if he bought them everything they wanted and he responds "help me out and pay the bills, that can be your gift". So I asked if he could put my name on one of the gifts for each of them WITH HIS NAME and he said no. I told him I wasn't ok with that we'd talk today. (With the drive home I wouldn't be home until after midnight.)

When I got home I went in to lay by him and two of the kids are in the bed with him. I'm okay with that, kids get scared whatever. I normally just carry them to bed. But last night I was feeling really nauseas and I asked him to carry them for me. He said "Are we gonna have sex?" I said "I just told you I'm going to throw up and you want to have sex?" And he said yes he did and I said no, we're not having sex. Then he said to move the kids myself if I wanted to lay down! So I told him to f**k himself, and I left and went to my house. Mind you it's 12:30 am.

At 4am he shows up at my house mad at me for leaving and knowing full well that I wasn't feeling well and i needed to be up at 5 for work. Lets have makeup sex, he says. No I don't feel good Go home. But he was persistent and finally I gave in just so he'd leave, don't judge me I know I should have stuck to my guns!

I'm just so upset today about all of it. The relationship is already on thin ice and he knows that but he just keeps pushing. I have an important meeting today and I can't even focus.

Sorry just needed to vent...