I can definitely fulfill the suspicious eyeballing Fae in the form of Silas who given that he was born and raised in Faerie knows a fellow Fae when he sees one. He also lives CT way so it's entirely possible that they're neighbours? Maybe your guy has also looked out for Silas' pets on more than one occasion?
Han also lives that way but he's a grump and well allergic to happiness in any form right now so clearly they need to meet.
All the others I suspect might be random encounters.