It's a bummer to hear about a long term friendship go up in smoke like that. You tried, he didn't. Move on.
Sometimes you have friends you grew up with drift apart for various reasons, but the friendships forged into adulthood seem to stronger and more lasting.
My best friend growing up and I were inseparable. We grew up across the street from each other. Upon graduation I went to college out of town and he stayed home. That summer in between hs and my first semester of college he pulled a pretty crappy move with a girl using me as excuse to go to a drag race when screwing in the car in the parking lot and porta-john while I'm sitting alone in the stands. When they finally found me I had already watched most cars make two passes and was done watching and asked to leave. While I'm not against a buddy getting his moves on, but don't hang me out as the third wheel and use me as the beard since your Mom didn't want you going out with her. We didn't hang out much after that bs. Went on to other things, moved to Detroit and remained nice to each other but might only see him once a year around the holidays when we flew back to see my folks. I saw his brother last night but not him.
My friends I got to know in college and my early time in my career have been much better and more fulfilling. Maybe it's the shared experiences, maybe we were just more mature. I don't know. But I do know is I wouldn't trade my friends I have now for anything. I'm truly blessed to have them. We'd do anything for each other, no questions asked.
Following you on here and IG you look like you have a few buddies like that. Hang tight with those that support you. Keep doing your thing. You are doing great. No need for negativity in your life.
Merry Christmas dude. Give Kevin a pat on the head for me. He's one rad dog.