I hate my sometimes boyfriend

Rant: Me and my bf/ex were dating for 2 years when he cheated on me and broke up. About 6 months later we started to hangout yet he was sleeping with other girls (I didn't know this at the time.)

I am now 10 weeks pregnant and we are trying to work it out.

Last week I found some lingerie in his house and he said it was from a long time ago and he just recently found it. He flipped out and got mad at ME and grabbed me by the neck and threw me out of his house. I forgave him.

Now today I haven't Easter dinner with my family and I told him not to go out partying (he loves to drink and do drugs) and he said he wouldn't. Now I've tried calling him 30 times and he ignored each one and sent me a text that says he won't be coming because he said out of town and drinking. It's 1 pm. He probably hasn't slept since last night and who knows who he's with.

I am so mad an upset that he would do this sort of thing to me again. I want to be free of him but I always forgive him and go back.

I don't know what to do! This stress can't be good for the baby and I've cried so hard I'm puking. My heart is broken AGAIN.