Replying to Guys want my gf

i need help, im like fighting stupid kids left and right that just want to fuck my gf. she gets like tons of messages on facebook, and myspace just being like "hey your hot lets meet" and i am always like uhhh i dont think so they just want to fuck. and all these guys online and people at parties and stuff. i cant leave for like 5 min, cuz i come back to guys with their arms around her and it sucks. she has one friend that worships the ground she walks on and everytime i say one thing wrong hell call her like the next min. and be like "i can treat u better come back to me" and all her ex boyfriends still want to fuck her. i really need to rant about how much this sucks, cuz im only comfotable when were all alone in mine or her room. oh and she gets pissed if i talk to any other girls than her, but she gets mad that i wont let her meet random internet guys, kinda sucks because i dont go out and meet other girls cuz she doesnt want me to, so i have no friends other than her. this sucks alot, but i like her and shes hot but guys dont respect relationships at all, wtf shes my gf stop trying to fuck her