i just don't know what my problem is. sometimes i can get hard for no reason and stay that way for a lil while. but it seems like when i'm in bed with my girl and shes ready for sex and i want to also, well it tends to go soft or it bends when i try to stick it in her. i don't masturbate anymore but i get a lot of handjobs from my gf. I'm 20 years old and she is my first partner i've had sex with. she thinks im not attracted to her because she's naked in bed with me and i can't stay hard but that is far from the truth i am very attracted to her. what do you think the deal could be?