Does anyone else struggle with this when manic?

I have made the decision to keep myself single, BP and BPD are not good ingredients for a healthy relationship and mostly I am fine with that.

However my sex drive swings like my moods, from nothing to rampant and back again. I am not the sort of guy to be sleeping around, especially at 41 years of age, even if I choose to be single. Surely I can calm down my libido, I am not a horny teenager anymore?

If so, why is it so hard, no pun intended? I know it sounds funny but it does get me down sometimes.