I need help i really f'ed up..help me?

ok this might be a bit long but this is what i need help on i have a boyfriend named Jason of 11mos and i have a friend Laura with whom ive been friends with for like ever she has a brother Chris we all are 15 2 nigts ago i was spending the night at Laura's house and me Chris and Laura got back from shopping with 3 movies and we watched them in CHris's room because he had the television Laura fell asleep partway into the sceond movie and Chris and me were talking about My boyfriend Jason and His girlfriend Teresa and all this stuff and then he got to talking about 2 years ago in 8th grade when i liked him but he went for someother girl and he was saying how he wished he a picked me instead of her and then Larua rolled over knocking me off the bed and falling onto him we started making out i wanted to stop but i couldnt i had wanted to do that for a long time oh yeah Chris and Jason are best firends i just dont know what do Chris (he dont like his gf) or stay with Jason and work it out