No pleasure in making out

So I've been seeing this guy for over a month now and I really like him and I love being close and holding him, however, I never have a desire to kiss or makeout with him. I can't make sense of it because I love the idea of it when I'm not around him, like fantisizing of it, but when I'm actually with him, I feel no want to. I feel guilty as well because he kisses me and we've made out once recently but i felt nothing. Anyone else ever experience this?

Also he's my first kiss if that matters