I dont know what to do!

Me and my boyfriend have the sweetest and saddest relationship. I met him when we first started working together. He was my boss and we became very good friends. At the time he was married and expecting his first child. A couple of years later and after he became my best friend he told me he loved me. He never mentioned any problems with his wife till then. He said it wasnt working out and he left her. I loved him so much. We never did anything until he left her. Once he did, we were together. I never thought that you could want something so bad and actually get it. He said those exact words to me. Since then we have moved in together. It has been hard. He was married 10 years and had to learn how to handle his finances. While he learned to do so, I helped him out. I very quickly ran out of savings. He never asked me but I loved him so much, I wanted to help him. I know he would do the same for me. His ex is having a hard time getting over it. She has made it very difficult for him to see his child. He is currently going to court for that. He is so stressed out all the time about his job, money, his ex, his kid and making our relationship work. That and he never has a day off from everything. He is either at work at home with his baby on the weekends. He has been so angry lately. He gets mad at me about the stupidest things. From what I do to things I say, just anything. And then the next day, he tells me he knows its stupid and he shouldnt get mad but he doesnt know why he does. I get stressed too. Im staying at my job because he cant change his schedule due to his baby. So I have to stay at my job so I can have the same day off with him and its just convenient with his schedule. I am totally stressed I ran out of money. It was my college money. I’m tranferring from a JC to a UC in the fall. I’m stressed because I dont want to be a stepmom. I’ve never liked kids but I put up with his because I love him. Everything going on says that we will not make it. All I have is that I love him and I know he loves me. I dont know what to do!