what to do!?!

Okay ladies so i’m confused on something. Everything was fine between me and my boyfriend. Im not sure what happened. He was kissing me at any time all day and now he ain’t doing it. The only time he kisses me is when he leaves or i leave. We don’t sex like we did. when and if we do it don’t feel like the same like it used to. It feels like he don’t love me. But i know he does well at least that what i’m telling myself. I know he cares about me that’s a giving. I mean i’m never gonna be up to where he wants me to be and i think that’s the problem. I’m just asking for some opinions that’s all. So please help me out with this.