My partner told me they are ace and it's made my thoughts worse

Throwaway because my partner knows my reddit account

Halfway through our messing around the other day my partner began crying and told me they think they might be ace. A few days later I sat them down to talk about something semi-related to it and they expressed that yes, they know they are asexual.

They told me they understand if I want to end the relationship, they don't want to break up but they know this isn't what I signed up for.

I know this makes me a horrible person, but I want to k!ll myself after hearing this. Ive been suicidal for years, but I kept holding on and things became better after meeting them. We were long distance for awhile and just recently moved in together.

With this, the state of the world, and literally everything else going on in my life...this feels like the nail in the coffin. Like it's the last sign, the universe trying to tell me that I will never be happy and to just do it now and save myself the trouble of holding on. Even if I stay I know my partner will hate themselves for making me choose between having intercourse and never doing it again.

I'm stuck. I'm trapped. I don't fear whats on the other side anymore but I don't even know where I'd do it because I don't want my partner seeing my body.