dating a bisexual

i have always heard my friends talk about bisexuals and that they dated one. i said to myself;i will never date one. well it wasn't until i became a junior in high school, that i got my first bi-boyfriend. yeah it all startedon a cold saturday morning at my bestfriend's grandma's house and one of our friends was her cousin friend, so he spend the night over there. we were messing around and he was flirting with my but chasity said that he was gay so i didn't have to worry. big lie. the last thing i remember was a blur and that boy jumped at me and smashed me and himself on her bed with my legs spread egal! i was tramatiezed by that and to make things worst, he started humpiing mw while my legs were still open! then we both calm down enough for him to ask me out. he is so cute! but the sad part about my realtionship with him, is hes two years younger than me!!!! f*** that i don't care, he is CUTEEEEEE!!!!