Feeling alone...

Me and my bf have been together for 2 years now. I feel like we are drifting apart. We dont really have sex anymore. My sex drive has completley gone. Even when we do have sex I cant seem to get off. I know this is wrong but I went through his phone one time and saw he was texting this girl he works with. Even his other babymama know about her. He tells them that he's single and im just living with him just cause. Our daughter will be here in 8 weeks come tomorrow (Friday). Im having dreams about him cheating, which actually lead up to the reason I went through his phone). I just had a dream this morning that he actually broke up with me to be with the girl from his job. Im starting to think he's ashamed of me. We barely talk now and when we do we just fuss and fight. i just dont know what to do anymore. He didnt wish me a happy mothers day and he decided to go to work on his only off day. I havent spent any time with him really in about a week, if not longer! I been thinking about cheating but I just cant get myself to do it. Not exactly having sex with another man but just texting them and talking to them. Im just so lonely!

Thanks for reading my rant. I dont have anybody else to talk to. It might not be healthy to keep all of this bottled up.