Ok. So i just need some advice. Please be nice.?

I really need some advice. I havent been in the dating circle in awhile. I was married for 3 yrs and weve been done for almost a year. I started talk ing to this guy on new years. He was at the bar with my friend(his cousin) and they were hanging out with me when my ex came up and hit me in the face with a drink and knocked me down on the dance floor and went after the guy that im talking to now. the day after new years I went to his cousins house to play cards and he was there. He was glad that i came. We got along really well. When i left that night, he walked me to my car and kissed me goodnight and told me call him as soon as I got home. BTW, somehow he ended up with my number and all he said was he knows people. Weve really been getting along. He has 2 boys and I have 1. My son loves him. They sit and play for hours. His sons adore me. They even like to sneak in the bedroom in the middle of the night to snuggle with me. Well, this is where I need the help. His baby momma's BF beat on her, he rushed to help her. Not a big deal. Well, they ended up taking her to jail for something else while he was there and we ended up with both the boys. Last night he had to go back home so he could go to work today. He called me when he got home, and told me that he was going to get her out of jail. With his money. But her BF ended up getting there before he did today but he doesnt know that i know that. he stopped by my work on his way to "get her out of jail" and pick up his boys. Should I just walk away? Im so confused. Because he acts like he likes me. But im not sure whats really going on with him and his baby momma. The way it sounded to me, I think she may be staying with him tonight. PLEASE HELP ME!