Excellent point, hvert. If you keep thinking you don't love him, there has to be a reason for that. Those feelings don't normally happen (especially on a regular basis) with a person who is happy with their relationship.

Like my mother used to say when I wanted to go steady with someone--"Play the field! You're only young once!" and she was so right. You need to date other guys because it's not fair to him if you stay with him, and aren't happy. I have to agree that this sounds like a "honeymoon" relationship, and now that the novelty is over, so are your feelings. Only you can decide, but the vibes I'm getting are very strong in the direction of you really wanting to be able to date other men, but feeling that you shouldn't because you're in a relationship. It's great to be loyal like that, but not at the cost you and he will both pay if you don't start listening to yourself, and your instincts.