help me plz

I don't know what to do....I'm dating this guy but I'm not happy and I want to become a man but the guy I'm dating doesn't support my decision...i texted one of my old friends and he told me he liked me he thought I was a guy in my Facebook profile..and he likes me but he's gay. so I asked him would u stay by my side while I go through this process of becoming a guy...he told me he would I see him more than my own boyfriend. is that bad.