HE SLEPT OUTSIDE HIS DORM.
Tap has is so badly for Ping but has no idea while Ping is drowning in loving him without any sight of the surface and Fah has the audacity to say that he should just 'tell him how he feels' hey, fucker, the guy you love still thinks you're FWB and you're an asshole.
It just gets MORE painful.
Because the honest answer is that Tap is not just the reason Ping is so heartbroken but also his best friend and his main support system and he's terrified of losing him and what can he do by try to be the friend he thinks he has to be? Because Tap is still showing all kinds of interest in Namwan instead of him and he doesn't want to compete. Ping doesn't want to be hurt or to hurt, he doesn't want to risk friendship on love because friendship feels safer but he is losing his friendship to love, whether he wants to or not.
His own heartbreak is pushing Tap away even though it's the last thing he wants to do... but he has to because he's trying to stop loving him and distance is the only solution.
So they're both alone and hurt and Ping is in love and Tap is figuring it out but also thinks Ping is in love with a girl (or maybe Fah or maybe Pai...) and just... oh, my aching heart full of pining and longing and Ping trying to shatter his own heart to choose friendship over love.