Should i dump him or am i just being over dramatic?

me and my boyfriend have been dating for 7 1/2 months and i swear im in love with him i dont care how crazy that sounds. but lately he has been very distant, not really particpating in conversations and very reserved like he is upset or something. on our last date i had to ASK for a goodnight kiss. when i confronted him about it he said it looked like i didnt want a kiss. . . ??????!!!!! for the past month it seems like ive been crying my eyes out trying to figure out what i should do about it. we are both going to college next fall and going to different schools 3 hours apart and im not exactly ugly (im not trying to be egotistical) and he knows i attract alot of guys so i know college is gonna be hard for him cuz we will be so far apart its just i dont know what to do anymore. . . are the tears even worth what might just be a one way street of feelings?