It's the hardest thing I've ever done, but would do it again (or similar) in the blink of an eye. My travel companions feel the same way it seems. 🏔
As I learned with my lady friend at the end of January, falling outs can be literally over nothing. In my case, her son's recent snooping behaviours that can only have been at her bidding (I don't know him at all) indicates beyond doubt I'm best rid.
Either they right themselves in time when people realise they've been silly or you move on.
Have you other mates you can reach out to, start again? That's how you move on without him.