I've probably said a few choice words, at the ending of things, but not in hopes of rekindling.

I don't know that I'd stay, probably not even date, a man playing the field. At a certain point, for me, mutual exclusivity is of utmost importance to take that giant leap into physical intimacy. How to even make it to the notorious date three, if he's on dates one, four, and five with other women?

Knowing a lot more about depression at this point in life, if I believed my man was withdrawn, I'd mention it with the conversation starter of, you seem quiet and withdrawn, I haven't heard from you, in a while, is everything ok?
Seeing what he says from there, matters. Depression can do that, often, and it's common to be oblivious.

To expect forgiveness after lashing out, turns the relationship into a cat and mouse trap. If he isn't meeting your standards, letting go may in turn be easier. Doesn't seem like he's the right guy for you.

Feeling used, implies that he hasn't been attending to you. He's not meeting basic needs, apparently. Maybe time to just move on. He probably never will.