Am I the bad guy?

He tells me I blame him for everything and that if it wasn't for me being selfish things would've worked out. 

There is a big age difference between us and he always says well if I would've supported and help him out we wouldn't have any issues. I don't feel the need to support someone who is damn near twice as old as me I feel like if anything they should support me out. Did I mention I'm only 21 so my life isn't completely together and I'd admit that but I am trying. I have everything for my baby thanks to family, friends and of course myself. He has bought nothing not even a case of wipes. He says he can't afford it. He says it's my fault he knows nothing about the baby but literally when I go to the doctors I am in and out within 5 mins because nothing is every wrong. I have had no issues or symptoms. What is there really to know? They tell me baby is healthy and I look good and I tell him but yet I'm hiding everything about the baby from him? 

What the hell did I do wrong to be treated like this? 

He makes fun of me because i live with my mother but yet again he is 2x my age and lives with a family friend. He literally bashes me because I live with my mom and he says we would have our own place. Did I mention my family helped him get a union job with guaranteed hours and benefits and he quit it because I didn't support him, no one supports me to go to work, I thought that's just what humans did. Now he has this job where hours are not guaranteed and his pay checks are little to nothing . So yeah let's move together and i have to pay every bill, plus everything for the baby, plus my car note, insurance, phone and everything else. such a great idea right? Like wtf. Or I can just move out on my own when I have enough money saved, like a smart person would. What do I look like letting a grown man live in my house fucking around under my roof and I'm paying the bills? I think not!

I'm done venting now.... 

He's not literally 2x my age , but damn sure close enough .