advice? found out my ex bf got married 8 months after our breakup on what would have been our 1 year anniversary?

my friend had told me and low and behold i go to his instagram story with his “new” wife not even 8 months after we split. devastated is an understatement i had hopes we could have worked it out, he watched my facebook stories since the breakup up until friday when he blocked me while i was asleep. and then i find out he got married, and i told him off basically said to never look for me when everything goes wrong and that i will never forgive him. i told him i will always love him but that i’m letting him go and not by choice. this was off of whatsapp and he obviously blocked me there within less than 5 minutes which i expected. i’m just baffled, it’s likely a rebound but it’s still messed up and like i meant nothing to him. this is his second marriage by the way and he is only 23. i’m 29. we got close fairly quickly when we met and it felt right, he was the first man i actually wanted to get married to and have a baby with and he knew that, obviously that dream is gone but i stuck by his side through a lot of stuff and he dropped me like i was nothing. i’m obviously in the mindset i have to move on and let him go but it kills me. advice? he is an avoidant. i’m not necessarily wishing i was in her shoes because just because she got the ring and i didn’t doesn’t mean he magically changed because he likely didn’t. the entire 6-7 months we were together was complete chaos and a never ending cycle but i loved that man dearly i did. it now feels like i’m going through the breakup twice.