hi i think it depends on the Immigration officer you get.... i went in 11 times last year, twice we went to france, and then to spain.... but ialways got stamped back in when i went back home to the states, i did get grilled with questions one time, but not enough to get to sit on the bench..about why i was coming and what i was doing .....i think they will put a W or something on your passort meaning warning? just be honest.. tell them that.. your boyfriend is studying here..