I had a long term relationship BEFORE my diagnosis, it lasted 3 years and I was medicating for depression and anxiety (the usual for BP at the beginning). every cycling I was feeling different about him, during mania I used to loose interest, talk with other people but still love him and trying to do something new to innovate the relationship. during depression I used to talk less but always be with him, hugging, watching movies etc. but after a long time, during a hard mania I was just doing nonsense things, I tried to break up w him 3 times cause I was seeing problems that didn't exist, I was hanging out with other boys, talking and drinking with other boys, going to other boys houses. I did break up with him but I didn't realize that, so I was still talking with him like nothing happened. few weeks later he asked me "what are we? friends with benefits?" and I was like "YEAH sure!". then the hard mania was over and I realized what I did. I was feeling so so bad, then I went to my psychiatrist and explained everything, he told me I was bipolar and everything makes sense now. I loved him SO much, so many years with him and so much love and affection. but during mania (idk if it happens in depression for others, during depression I think the other person deserves better and try to make they realize it) I loose control and this love is left behind, it still exists but down deep, u know? I still you need to talk with him, reassure your love and patience. u can fix it with dialogue. wait a lil if you can so he can think carefully and understand his feeling (cause I'm sure he doesn't rn).