Not really, he’s been a fan of the other idol for so long- having to put it away is kindaaaa not cool :/ Imagine working that hard to get stuff and having happy memories of it only to have to put it away or throw it away. Like I get if he’s jealous cause he knows his member is closer than a normal fan, but he already knows the chef only likes him in that way. Throwing your own belongings away because of a lover isn’t really something good. The only exception I would think of is if it’s related to their ex or someone they actually had feelings for
Plus yiyeon knew already knew just how much of a fan the chef is of the other guy, he should know by now it ain’t like that. Feelings of a fan is different from feelings of love
Yiyeon quit the drama ffs, he likes you. wtf is "Is hE nOt FeElInG aNythINg?"
But yeah it is ridiculous of chef to keep the other guy's posters in the living room.