Long Distance Lovers

My boyfriend and I have been together for a year and a month today and we're far away from eachother :( I was living in Barbados, which is the country where he lives, for a year, but I just moved to england to finish studying and i'm missing him tremendously. It feels as if the connection we once had is diminishing because we're so far away and also, me being diagnosed with borderline personality disorder doesn't help. We have alotta arguments and awkward conversations because of it and it sucks, because i just want us to be good while we're not together. I'm afraid that me not being there, will make him forget me and move on. Sometimes i feel as if he doesn't miss me or care about me and it hurts like hell.