Can 2 people w/different views on love pursue a relationship together?

My so has never been in love before I came into his life. I mean, he hooked up with 5 or 6 girls, had two weird non-stable relationships (one of them fwb) but he says I’m the one with whom he’s having all the real feelings for the first time. And I believe him. He’s so caring and protective and honest about how he feels. He’s honestly the best guy I’ve ever been with.

The problem is, I was in a shit relationship for 4 years before my current so came along. Soooo I’m kind of skeptical when it comes to love. I don’t doubt my feelings for him, I know I love him - please don’t get me wrong - but sometimes he brings up marriage and I can actually imagine myself spending the rest of my life with him but still those topics kind of bother me because... I don’t know. I just learned how everything can change in a day, how temporary things are. I think he’s taking it a bit too quick but he gets so hurt when I disregard this subject because he thinks I’m just playing him (he’s been played before) and I can see feel his fears but still idk.. I just don’t know. I ’m 22yo and we’ve been dating for about 6 months. Sometimes I feel like I don’t love him as much as I should. Nor as much as he deserves because he’s so committed to me.

Am I not committed enough? Do you learn to love each other more as the relationship develops?

Or am I wrong? Are with incompatible?

Help me out please