Phichi x Seung Gil Headcanons it is~!
It took a lot of convincing, but Phichit got Seung Gil to watch the King and the Skater with him when they were together, and Seung Gil was so interested in the plot [much to his surprise] that he doesn't notice that Phichit was taking multiple photos of him while he was entranced
Seung Gil planned to buy Phichit a selfie stick for Christmas, but when he found out that he already had one, he just kept it hidden in his room, not having the heart to return it
Phichit literally has to drag Seung Gil out to socialize with people, pretty much getting a limp boy from Seung Gil because he's much rather be at home. But when Phichit shoots him his puppy dog eyes, Seung Gil caves, and lets Phichit take the lead, wherever he may go
Phichit constantly talks about Yuuri to Seung Gil, talking about their time in Detroit and afterwards, accidentally making Seung Gil jealous because of it, getting a subtle disappointed facial expression, which Phichit picks up right away and changes the subject
Whenever Phichit wants to get Seung Gil to talk, he just brings up his dog, and Seung Gil become more chatty with him, but still remains deadpan