Luckily for me, I'm living in the same first house I bought straight out of grad school, 18 years and counting. All I ever wanted growing up was a sense of permanence. I am thankfully now able to provide that for myself physically. However, in terms of human relationships it's still a struggle, especially on the romantic side. The only person I can truly consider a "long term" friend is a fellow diplomat brat I met in Costa Rica. Even then we've had about a decade where we weren't in touch much. But I think we both recognize that there are very few people who "get" what it's like to have the types of parents we had, so we can bond over that.