Also, Eggsy is Kingsman, so obviously he would understand whatever reason Harry would have for having stayed away. And he'd be so happy. Also I like the ones where Harry comes back because Eggsy is injured and Eggsy thinks he's hallucinating, so he tries to ignore Harry and Harry of course thinks Eggsy is angry. It goes on for days. And then THE HUG when it finally clicks for Eggsy that Harry really is back.
Oh man, one thing that came out of the long wait for Sherlock S3 that I adored, was Sherlock coming back and John just accepting it and not caring about the explanation and just going on about their lives.
But then one day Lestrade comes over and starts talking to Sherlock, and John’s eyes widen and he whispers, “You can see him too?”
The idea of something like that happening for Harry and Eggsy makes me squirm happily. I can really imagine it too. Eggsy would believe he was hallucinating and going crazy before he’d believe that the universe would be so kind as to give him Harry back.