Is my relationship worth fighting for, and how can I be a better girlfriend?

My boyfriend and I have been dating for a little over 5 years- we started dating in high school and now we're seniors in college. For the past 2 years, my boyfriend and I have fought off and on about the same things over and over and over again. He threatened to break up with me if I went to prom (he wouldn't go an wouldn't let me go with my friends because he said it would make him look bad), and I have given up so much for him. IIn the entire 5 years that we've been together, I've never once heard the words "beautiful", "goregeous", "pretty", or anything like that at all- and the only time we ever say I love you is when we get off the phone every night. In addition, we both go to different colleges and only see eachother once a month usually- even then, he never ever says he misses me, and when we are both home for a weekend, he usuaully only spends an hour or two with me and the rest with his friends (who he goes to college with anyways). He spends the whole time we're together playing on his laptop and texting his friends to make sure he's not missing out on anything "better to do". And now that we're both home for summer, he still ditches me for his friends (they go to school together, work together, and then spend every freaking night together as well). We've talked about this a million times, and my boyfriend always says he's sorry and he'll try not to do these things to me anymore- but after a week, he always goes back to the way things were. Just the other night he told me "there's nothing wrong with what I'm doing. I'm young and this is what I'm supposed to do. I just wanna live a little." No freaking kidding! I wanna live a little too! But he can still have a good time and not treat me like a worthless piece of crap. I get that we've been dating for practically forever and he wants space, and I'm willing to do that for him, but all I want is to feel loved and appreciated. We've both been home for a month and we've only seen eachother 3 times (2 of those times we were with his friends too). Actually, we pretty much don't even have a relationship- there's no affection, we hardly ever see eachother, and half the time I feel like my boyfriends hates me. I love my boyfriend more than anything, but I can't keep being his last priority and feeling unappreciated and unloved. Is my relationship worth fighting for? What should I do? After being together for so long, this is not an easy decision at all.