Thoughts?

My boyfriend of 7 months confessed that he has desires to couple swing, threesome, and mess with bbc himself. I told him it would be best to break up but he really doesn’t want to not be with me. Im not sure what to do. I love him but I don’t think I can part take in that. I’ve told him I wouldn’t want to and he said that he doesn’t care he wants me but then he’ll bring it up here and there. I also asked if he was bi because of his desire with bbc but he says it’s purely a sexual thing no desire in men at all.