hi guys! recently i started up a thing with this guy. he left for college and i'm still a senior in high school. we've been flirting and before he left we hooked up twice.  i sent him a sexy pic today and all he sent back with a picture of him kinda smiling kinda smirking saying "very sexy:)" i don't know why but this kinda rubbed me the wrong way.  i know what he said was kind but i was expecting a more enthusiastic response. am i over thinking this or am i right?  this is all really knew to me so any help would be great:) thank you