The thing is, being lonely is like walking in the cold without a coat. It’s uncomfortable, but eventually you go numb. Once you get used to not being lonely, though, the shock of going back is like having your down comforter yanked off at six o’clock on a Minnesota December morning.
Do you know what a fate map is in biology? It’s a map of which cells in an embryo should develop into which specific adult tissues. But what they should develop into isn’t necessarily what they actually do develop into. They can be manipulated, or change on their own, and end up as something completely different from what they were fated for.