Bv in men ?

So i had unprotected sex with my current boyfriend before i found out i had BV and after i got it taken care of everytime i had sex with him it came back so does that mean i gave it to him? Not to mention he’s the kind of guy that doesn’t like wearing condoms and I’m scared to get it again so i don’t want to have sex without one on but i idk how to tell him why And idk how to tell him if he should get treated for it too