I have someone in my life that from time to time, I am struck by thoughts of jealousy of. He's in an old colleague, similar sector, far enough to feel remote, but close enough to feel a comparison to him. If I shared the details, and it wasn't him, it would be in no way especially remarkable (we're not talking someone who become a Hollywood film star).
Does anyone else have anyone if their life where you feel envious of, even though, if you shared it with someone else, it wouldn't make any sense?