I'm about one month out from my ex cheating on me. He went through a major manic episode triggered by being on the wrong medication, got super drunk, and slept with his coworker. After this, he went into a MAJOR depressive episode to the point where I was worried about him harming himself. He's admitting to thinking he doesn't deserve to live anymore. 

I'm trying to be understanding of the situation, but I had to step away for my own mental sanity. It breaks my heart so much, but I am so scared of this happening again. He is the only person I know with bipolar, so this is my only experience with it.