long distance? help gusy and girls please!?

[Maria]

Okay so, my bf and i have been together for 2 years and a half, ever since we first dated we never saw eachother for summer or christmas so we would do long distance for a bit, 4 months at most.But when he was here we would be together 24/7 and never got sick of eachother. But the end of this summer everything changed, i saw him for 3 weeks in september before he moved to spain to try and become a professional soccer player(he's 17, im 18), and then i saw him for 2 weeks during christmas holidays(we spent everyday together)
we are are very inlove (im his first everything) and we talk about everything together.. but recently things started to get really hard for him and he told me he cant take long distance, the thought of not seeing me for 6months(until summer) kills him, and that he will never find a girl that made him feel the way i made him feel and he wishes he met me when we were older (23-25) he said he wished he met me when we were older a couple of times throughout our relationship.. he also said that he loves me very much but we are still young and he doesnt know where he will end up 2 years from now so he cant do long distance for 2-3years, but he "WILL" come back for me later on in life.. i was so shocked and devastated when this was all happening.. its been a little over a week and we havn't spoken, but neither of us have bothered to change our relationship status on facebook nor our pictures.. i also barley see him online anymore(on his phone)
Id really like to know why this happened,
i mostly want to know WHY he hasnt changed his facebook, i know i havnt because im not ready to let go..
Thanks SO much.