Long distance relationship?

okay so i am going to college 12.5 hours away by car from my home. my boyfriend is a year younger and he really wants to stay together. i really wanted to stay together but now as im getting closer to moving in on august 13th (so early) im running out of time and i dont know if i want to hold him back and put him through all the stress of a long distance relationship senior year or if i want to be stressed out about a boy 12 hours away. we've been together for about 8 months now almost 9 and dating for 6 almost 7. before i leave for college we would have been dating for 8 months. i really truly love him and i know he loves me too but i just dont know if i should give up my college experience for him. everytime i talk to him about it he gets upset and defensive and says if you break up with me when you go to college ill never talk to you again. i dont want that but i also dont want the stress of a long distance relationship put on me as well as 16 hours of classes a week. i just dont know how to tell him. i know im going to be at parties and be tempted to do things especially if i am in a sorority. should i give up my college experience for the guy i love? he always talks about how we are going to get married and how he can wait for me forever. but i dont want to go to college and cheat on him because i am not like that at all and i could never do that especially to him. wah i really dont know what to do. i know i have a little time left but im just so stressed and confused. i used to cry every night because i would think about leaving him but now its college its my turn to start over and be who i want to be and do what i want to do. what should i do? :(