Awkward things my ex says

I met up with my ex last night because we got in a big fight 6 months ago (mainly because of his on again off again gf) but she's out of his life for good now and he felt really bad so we talked and hung out as friends. I mentioned something about my most recent ex and he started asking about him his name and I told him then he asked his last name and I wouldn't give it to him he said he'd message him and tell him I'm a solid hook up I couldn't help but laugh and say no I'm good thanks.