WHY does he talk to me so much when he has a GF??

OK SO THERES THIS GUY IVE KNWN SINCE I WAS LIKE 8 BUT I REALLY NEVA TALKED TO HIM TILL LIKE LAST YEAR(IM 17 NOW)...HE LIKED ME BUT I REGECTED HIM THEN WE STOPPED TALKIN FOR A WHILE THEN WE STARTED TALKIN AGAIN...HES LIKE MY BEST FRIEND HES TOLD ME EVERYTHING THERE COULD BE TOLD OF HIM HE EVEN TRUST ME SO MUCH HE GAVE ME HIS PWORD TO HIS MYSPACE N EMAIL....BUT THE THING IS HE GOT A GIRLFRIEND LIKE 2 MONTHS AGO...I DONT UNDERSTAND IM SO CONFUSED...HE TELLS ME HE MISSES ME N DAT HE CARES SO MUCH 4 ME WE LIKE TALK EVERYDAY...WHAT IS UP WITH HIM..WHAT DOES HE WANT FROM ME...CUZ I KNW WE TALK AS MORE THEN FRIENDS IDK WAT TO DO..ANY HELP ON WHAT TO DO OR Y HES DOIN THIS....IM JUST SO BLOCKED OUT...PLZ HELP...WHY DOES HE TALK TO ME SO MUCH...