Should I feel bad for putting my ex on child support

He told me I ruined everything and now he is losing the house because of child suppprt and that he had to drop out of school and all the utilities are off. He said he also has a broken down car and can’t really get around. Since I’ve received child support I was able to get a running car and get to work. My job is a cashier job but if I stay longer I can be a manager. Towards the end of my marriage I had to leave because he was really mean to me and made me cry he threw my hands into the stairs and choked me. I wasn’t perfect but he would play mental games like have sex with me then not talk to me and sleep down stairs for 3 weeks and I would beg him to love me and come back to our room.