<human>: Joe (27)-husband
Mary(26)-Wife/ ex best friend 
Jane(26)-my girlfriend 

Im (26/M) friends with My girlfriend's(jane) ex-best-friend(mary)-husband (Joe). I've never been fond of the Mary  but i always tolerated her because she's WAS my Jane's friend. Me, jane and joe were all friends (we worked together) long before the now wedded couple even known each other. But now that Jane and Mary aren't friends anymore idk how to go about my relationship with Joe. Joe and i are pretty good friends too. We are gym partners and even recently sparked a business idea. 

ITs a real sticky situation and i don't want to disrespect Jane but i don't have any real problems with Joe.

Give me the gist of the text in a nutshell
<bot>: I don't want to disrespect my girlfriend but i don't want to cut a meaningful relationship if theres a better way. any suggestions on how to go about this?