
So just a theory here: Jaemin doesn't let go of Daon bc he likes Soohyun. By not letting go, Daon keeps his hopes up and can't even think about loving someone else. Besides Jaemin has been very caring all these years, so Daon is emotionally attached to Jaemin...
In short, Jaemin is a f*cking manipulator ┑( ̄Д  ̄)┍
Why are they so obsessed with the uke? Come on, you're not little kids anymore, dumbasses