Re: dealing with myself and a breakup
First of all---your kids come first. You were told before that there were red flags regarding your relationship with this guy. However, you still pursued a long term relationship with him. All that said, of course you need to take the time to grieve the end of the relationship. In time, feelings will fade. Since you have a second child on the way, your days will be filled with caring for your two kids, so that will keep you preoccupied.
As for him spending time with a friend he hadn't seen in months instead of you---I see nothing wrong with that. It shouldn't have upset you either.
I'm glad you finally realize he has a drinking problem. After all, when he got drunk and brought those women to your apartment, that right there was a huge red flag.
If you feel that you're not getting what you need from your counselor, then maybe it's time to change counselors. Or it could be that perhaps you're not doing all the work required of you to make positive change. I don't know---you need to do some soul-searching to find out what is going on.
In the meantime, don't pursue another relationship with a guy for quite sometime. You don't want to get into a "rebound" situation. Having kids makes it even more imperative that you don't rebound. Your kids need stability in their lives. Just concentrate right now on being the best mother you can be to your kids.