My situationship refuses to kiss me

I (30f) Been in a situationship with my neiggboor (29M) since december, hooking up and spending the night since october) We had already 2 arguments in which he told me he isnt looking for something serious. Stayed friends a couple weeks in which he would try to see me everyday of the week. 3 weeks he initiated sex again and we hang out everynight. When I go home he would kiss my cheek or hug me.

But the las two time we had sex he didn’t kiss me (first time was morning spoon so I Let it slip) last night had a quick session and he told me he wanted to sleep alone. I try yo kiss him goodbye and he refused telling me to not confuse things and not cause a fight. I feel disgusting, what it means spending so much time and wanting sex but no kisses? Im not demisexual I know you Can kiss just bc you are horny? What do I do?