I wanted to avoid this but felt the need to say this, as little help as it will be.
I haven't been diagnosed as bi-polar but I know enough about the disorder to know I am probably there. Hyper sexuality has been the bane of our relationship for all 40 years.
This can be managed. I went to therapy, got on the pills and moved 'forward'. My wife, who is full of life, loving new experiences, and wanting to laugh as much as possible, was living with a shell of who I was. Sure, I was no longer a sex addict, no longer freaking the fuck out at every little issue. I also was no longer quick witted, no longer an amazing, inventive lover, just a zombie.
Through a breech in the mental health system, I was forced off the pills. The problems returned. We are managing them as best we (she) can. The only way a marriage can survive this issue is with a spouse who is capable of dealing with the consequences of remaining married. She did give me very good advise "don't put yourself in a position where the opportunity can arise". I was constantly doing that, feeding the addiction. I stopped, the problem is there, the drive is strong but since I'm nowhere I can do anything about it, I don't. I can't.
We have agreed on me having a fwb which I do, who I see now and then, who my wife is aware of but doesn't want to know when or what I do. Having somewhere to go to bleed off the desire has been a big help. It's just the guilt is really horrible. I feel for ya. Really though man, avoid the LS as much as possible.