Do you still mess around with ur bd?

We’ve been broken up for a year now & we were doing decent on co parenting. He came over for two nights & I didn’t have sex with him but he did give me oral for the two nights.. we were good but now I’m getting in my feelings, it’s completely my fault bc I knew what I was doing but this sucks.. I asked him if he was with a girl last night bc he didn’t answer or text back & he said it isn’t ur business which it isn’t but it hurts😞 I wouldn’t have asked or cared if those two nights didn’t happen.. I know he gets off on me having a reaction to his bs