This is so tricky. I have an estranged friend where the ghosting was kind of mutual because I didn’t feel comfortable with her partner and she felt I was judging her for him (when I’d made it clear and she’d also previously remarked that I don’t have to be friends with her partner). We’ve since run into each other and been friendly, but we haven’t repaired the rift yet. Sometimes it’s hard to know if a falling out can be rectified. But we have to give ourselves grace and also acknowledge that it’s okay and perfectly normal to outgrow people, friendships, and relationships.