Confused, need advice!

I have been dating this guy for almost 6 years. I love him very much, but I feel like we are not in love anymore. He has become anti social and sits at home all the time. I try to get him to come out with me, especially since we have the same friends, but he always says he doesn't feel like it. I feel like we are drifting apart and a part of me feels like I should move on, another part of me can't imagine my life without him. I've tried talking to him about it but he really doesn't have anything to say. On top of that he doesn't have a job and I've been supporting him for the past 2 years. He says he's been trying to find a job but I really don't believe him. Any advice would be appreciated.

He sounds depressed or something. Whatever it is, he needs to be taking steps to fix his life. If he won't, then you should end it.