When I divorced, pretty much everybody said, "At least you don't have children" so that's one thing to look at.
Have you thought about counselling to get at the root of your issues?
I don't know your age but I know I married in my early 20s and should have known it wouldn't work. I know many Pixies have great marriages and have been married and survived their 20s together but I wasn't one of them.
Edited to add: You're exactly a week younger than me
I'm still finding that I'm changing and don't know what I want from one day or another. You have to look at yourself, look at him, look at the two of you together . . .
The big question is: why do you say you think you aren't in love with him anymore?
I notice you say, "you don't think" . . . that's a big difference from the declarative statement, "I'm NOT in love with him anymore."