I (28F) had been dating this guy (32M) for a very long time, we’ve been together for over 8 years, although not continuously due to multiple breaks. The chemistry between us was incredible, especially in the bedroom. But whenever I tried talking about the future, he’d either give excuses or gaslight me. Ironically, whenever he got wind of me of other guys being into me, he'd suddenly start love-bombing me, without actually making any progress in our relationship. In hindsight, he was just leading me on.
Then, by some twist of fate, I found out he was seriously involved with another woman, so I ended things with him and stopped seeing him. A few months later, I ran into him at an event. He was friendly at first but then started saying how ending things was for the best because he's more compatible with his new girlfriend and way happier. I just responded with something along the lines of "Okay, fair enough, have fun."
I didn’t think much of it, but since then, he’s been trying to reach out in different ways, and I’ve shut him down every time. What’s interesting is that whenever I reject him, he posts about all the things he’s doing with his new girl; usually things I used to beg him to do for me and even hints about proposing to her soon. Is this out of spite or possessiveness?