What does it mean?

Tye

So there’s this guy I’m really good friends with, we hangout a lot & have sex and I’ve known him about 11mon now. We always mess with each other, poking, tickling, slaps on the butt, etc. but today we were just hitting each other & he called me by his ex’s name, totally caught me off guard & he’s never done that b4, does this mean he still has feelings for her? Or maybe he still thinks about her??