Love i Leave__________________?

there's no reason for me to not be in love with my boyfriend. i love him. and he has gone out of his way to show how much he loves me. but, sometimes, i feel like when he says it, it's just words. and though i love him, i don't want to be with him anymore. i think it's gonna turn out like the book Forever by judy blume. perhaps i never should have read it. but though i love him, i get this weird feeling inside, like i'm going to have to end it for some reason. i've had this feeling a couple of times before. it feels like when you do something wrong, and you know you're going to eventually get caught. i'm not going to leave him any time soon. my question is this: has anyone else experienced this? and if you have, does it go away? or am i just scared of commitment or of love?