Im kinda down. can you help a bit?

i waited half the sumer for the one friend i trust to come home from a long vacation. i consider him my closest friend, but he probably just considers me an acquataince or a "nice" friend. well, now that he is home, i only have a couple days to see him before i go away on my family vacation. i asked if we could and he just named a couple people who wanted to hangout too. as if they were more important and like i would understand he said SORRY. I am very upset because i hanev't hungout with anyone in a while and him letting me down like this was hard after me missing him so much. i don't want to be told "make better friends". if i could do that, don't you thi nk i would? i then told him when i would be leaving and he said "geeze. i'll try" as if it was hard to fit me in his schedule, but he could manage a few hours. that is just how i took it, considering it was on AIM, but it still hurts. How can I cope with this? I am so lonely and have been for a while.I was hoping that would change.