Acts like this after sex?

Backstory

.been together for 2 years and have been sleeping together regularly for 10 years. Every time after sex.. His mood IMMEDIATELY changes. Like after he finishes...he gets up..wipes himself off.. Usually says something funny and leaves the room. Before you say that he doesn't love me or thinks of me as a hook up.. That's not the case. We love each other alot, and our relationship is good. Ive tried telling him that i need post sex cuddles because my body is still in " nurture" mode and I would love some intimacy. My wishes just kinda go unnoticed. When i tell him to come lay back down he will say something along the lines of " i cant lay back down baby get up". I just don't get it. Can i not get a kiss or 5 minutes of laying there naked? He gets dressed immediately. Btw..we live together