I also have friends like that. And lost them a long the way bc maintaining it was really hard once we all moved away for college. Just loosely connected atp. But I randomly started posting more, I slide up on stories, and then invited a old friend to the gym who also at the time posted their start to a work out journey. And from there we chatted on after the gym. It was hard. I was sweating bullets. But they had a friend group, and luckily, they really like me and made a whole ordeal over me
But honestly I wish I had a good answer in how to fix it more than by chance. And this extends to people NOT in groups. I have reconnected here and there with ppl who I was friends w through this, some even asked to hang after texting a bit. But I really decided to protect my peace and give myself rules. They don’t want me there, I won’t be there, but I won’t know until I try