<human>: Condense the text into a few key points

I've (25f) come to realize that my ex (25m) has consistently lied to me, throughout our relationship and since we broke up. He's done it because he is so insecure and conflict-avoidant that he'd rather lie to make himself feel comfortable than to actually confront what he's feeling. 

Most recently, we'd been spending time together again. I was very honest with him and told him that I'd like the chance to see if things could work out between us now that some time has passed. He told me he was considering getting back together, and though he hesitated a bit, he agreed that we could go out on a couple of dates and see where things could lead. A couple of hours later, I get a text from him about how he never wants to see me or be with me again, and he informs me that he has a girlfriend. After a few minutes of back and forth about how he could lie to my face like that, his girlfriend CALLS me to tell me to "leave him alone!" Of course, I'm sure she has no idea how much he was playing into it, and he's just painting me as the crazy ex.

It's especially hurtful because there was no explosive fight or serious issue leading to our breakup - we were just in different places, it was his first relationship and he wasn't ready for commitment. The other part of this is that I went through very serious life events soon after our breakup. I nearly died and have long-lasting injuries as a result of an accident, and a couple of months after that, my father (and only family member) passed away. My ex told me he would be there for me during this time and completely bailed on me when I just needed his support, even just as a friend.
<bot>: I went through serious life shit, my ex pretended to want to be there for me and wasn't, and now he's in a new relationship while I'm miserable.