He thinks the world revolves around him, he revels in the attention being in a relationship brings but wants nothing to do with the actual work and commitment that it takes to be a true partner.
You've mentioned before how one-sided the whole thing felt, like you were doing all the work. That's what he wanted. A bunch of different women doing the work to keep him interested while he got to lay back and revel in being the center of attention.
This is not a healthy adult male you're dealing with. It's "His Majesty the Child" as Bill Wilson said in the AA big book. Also known as the King Baby. Basically the mindset of a toddler (me, me, me, mine, mine, mine, I want, I want, I want) trapped in a grown man's body. Not relationship material, as you (and many of us here) have sadly discovered.