What’s that supposed to mean?

My ex and I broke up some time ago. I had mentioned inviting him to my birthday party when we were together. Today he texted me “am I still invited?” I said “idk” & he told me, “come on, present me one of your friends” I said, “why would they want something I already had” & he replied, “cause they’ll have something you didn’t”

I blocked him after but I’ve been questioning what he meant & don’t know if I should unblock him to ask.. /: