Emotionally flatlined...

Hey y'all. Just wanted to vent a little as I'm about to rip my hair off out of frustration... I have got really bad anxiety and bipolar disorder...and recently I've been diagnosed with emotional flatlining. I can't feel a thing nomore and feel like a zombie... Recently I've been cheated on by my partner but we worked things out as it was a one off ...this has made things worse with my mental health . I keep having nightmares about it , mad panic attacks and flashbacks. My relationship has gone from fairytale to a nightmare. We hardly ever get intimate due to him being stressed and me too . Has anyone felt like they don't wanna be with their SO but also would be damned without them ? Sometimes I think Its best to call it quits but then again I think about all the things we had and the fact that I'm involved with his family and I just can't do it. I really don't know what to do anymore ..this is driving me crazy . Sorry for the long post . Hope y'all have a good day !