<human>: Can you give me a shortened version of the text?

Okay this is kinda complicated. We've been together 4 years, we moved in together 2 years ago. Both in grad school. I knew from the start our sex life was doomed. 
I always initiate,  he was never interested. He had lots of problems getting it up, problems with going soft and general preformance issues. Sex happened very rarely from the beginning. Until basically not at all. 

This Christmas 2013, he told me he's bi. I was okay with it, there were some tears, but we said we'd continue. 
A few months ago we decided to take a break per say, have an open relationship and see other people. We didn't discuss it until last night. I slept with one person, an old friend m25,  when I went back to my home town for 2 weeks. It was amazing,  passionate, perfect. I fell.head over heals for what we had. I'd never experienced a spark like that. He's probably my best friend and he's been by my side through this tough time But this guy is very far away so although we chat online I cant see him again until Christmas... 

My partners been with with 5 different men since we decided to take this break. 
I'm heart broken. I don't know what to do. We ended up just crying last night. I love him. I just know he's not the one and neither of us are happy. I don't know what to do. 
We still share a bed, we watch movies and cuddle up at night, there's just no attraction and no sex there. We love each other and care about each other.  And it hurts me that he's been seeing other people but I've accepted it.
We have a life here. I need to finish school before I can move anywhere We still have our apartment lease until next June so we can't get out of it until then. Neither of us can afford to move out. But it hurts so much living together like we are. I love him and care about him but I can't go on like this. I feel trapped and doomed. 

I don't know what to do.
<bot>: boyfriend of 4 years is gay. Took a break and had an open relationship and now I'm heart broken. Don't know what to do.