Whys my ex mad at me even though he broke up with me?

He broke up with me and I wanted him back but he didn't want to but said we could be friends so i gave up and accepted it. He moves onto another girl and i took it all like a champ, saying congrats but he didn't seem to like that. I asked him what she was like, if she was wifey material and I got crickets. Me and him have a pretty good connection so I sent him some new pics of me and my new car I thought he'd be excited for me but I got crickets. Lol I'm like dudeeeeee you got what you wanted in every way why are you being salty?

Whys my ex mad at me even though he broke up with me?
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