Once you no longer romanticize the intellectualization of your dysfunctions, you can quickly get over this type of stuff, but you'll have to relinquish that part of your ego that says your self-analysis actually makes you smart or interesting. A tall order for a lot of y'all.
if you strip away the context of this scene it looks like baku realized that gotak and juntae are dating and he's trying so hard to be happy for them but his heart is breaking inside because he's been in love with gotak his whole life