I'm a bisexual man currently in a relationship with a woman. Our relationship is great. We get along, have similar goals, there's literally nothing wrong with our relationship. But lately I have been fantasizing alot more about men. And this isn't anything knew to me. In the past it was simply that I was more in the mood to watch gay porn. However this isn't that. I have had desires to be romantically involved with a man. To hold, kiss, carry and love another man. This is knew and interesting because it doesn't make sense to me. I've never thought that the experience of love would be different between men and women, so why now do I suddenly crave one when I'm being fully satisfied by the other? Recently I watched the stranger by the shore and I felt such envy for the main character that I had to shut it off and watch it later. I feel so guilty, because my girlfriend is perfect and she does literally no wrong, but I can't under this craving.
You aren’t being fully satisfied by your partner. You need to be honest with her about your feelings and figure out how to solve this problem as a team. Be clear with her that you love her and this isn’t in any way her fault.
It's so awful. She doesn't do anything wrong. If anything she's better than I deserve.
I expect many bi's get different things from having sex with the different genders. Since you love your partner, is she curious enough to explore a polyamorous relationship. Polyamorous relationships do require a degree of acceptance from all parties tho otherwise to quote "This Mortal Coil" song 'It'll end in tears".
I don't have it in me to be poly.
Fair enough, the question is probably best discussed with partner. There may some way work through your feelings. It won't happen unless you do engage with your partner and keep it a secret. It boil over into an affair or a breakdown.