Pisces guy problem URGENT~~ thankyou and please =o?

my pisces guy (18) ive known him for 1 1/2 yrs & we're really close. we hit it off instantly. people thought we were bf gf that day. we still arent official after all this time he does everything a bf would like holding my hand, standing REALLY close, protecting & defending me, & even when other girls approach him he'll kinda lean into me like im with her type of thing and he clings to me. its an automatic that where i go he goes & people refer to us as eachothers halves. he lets ppl say we're bf gf & when ppl ask him where his gf is he responds. if i wander off he comes to find me. he says he cant wait to see me & wont go places weve shared together by himself due to it being OUR place. 1 - he says we're just friends and no one believes that, he does live an hour away though. 2 - he disappears for weeks at a time from EVERYONE and turns off his phone and computer and is unreachable, yet says he misses me. ??? help i want to FINALLY be together. im in love with him. thanks im a libra.