Starting to rethink alot of things..

Well first off, I have a 9 month old and am pregnant with my second child. My boyfriend and I have been together for almost two years, I have been noticing his anger getting worse and he has been hiding things from me. I'm finding myself drifting away, for the first time yesterday I was actually attracted to a man other than my boyfriend ! The guy I am attracted to I knew my whole childhood but I haven't seen him in a while so I had no clue what his adult self looked like 😳🔥🔥

The point is, I can feel myself detaching from him, I no longer feel loved, he hardly ever gives me a mere tiny compliment, my self esteem is plummeting and I just want to feel whole again. Literally the only things he does that a good boyfriend would do is have sex with me and pay the bills, I'm feeling so hopeless right now.. I was engaged for 4 years to a man who started out to be everything I ever looked for in a man, then he started acting like my boyfriend is, then it continued to get so so so so much worse.. I need advice, please do not judge.

I just want to feel appreciated, loved, cared for, and beautiful. Is that too much to ask? I can't help but think I may be with Mr.Wrong again and Mr.Right is around the corner.. I don't know what to do, I want to stay with him for my children but I also know that isn't the best idea.. I'm so conflicted

I'd also like to add that the guy, I'll call him "Bob". So Bob is incredibly sweet, I mean the sweetest ! I've known his whole family basically since birth, I can't stop thinking about him.. I would NEVER EVER cheat on anybody, but I cant help where my mind goes when I think of him. But also to the same point, I can't handle thinking about my boyfriend because it stresses me out.. I dread him coming home everyday, I worry all the time that I'll randomly piss him off.. I hate my life right now. Bob and I are both taken, his girlfriend is super controlling from what I know and he doesn't seem happy. As soon as he spoke to me after all this time he starts with 'Hi Beautiful' we sent pictures to each other of what we look like now, He says 'Its a damn shame you have a man' when he sees the picture of me, and continues to say how gorgeous my eyes are. I've never had that from my man... ever... I can tell the feeling is mutual between me and Bob, but our awful relationships are putting a stop to getting to know each other.. I want out so badly, I want him so badly but I guess my fairytale isn't about to come true.. I never have good luck with anything, I regret so many of my decisions..