After witnessing boston and tua's kiss, arnold starts distancing himself from tua without any explanation. Tua actually never finds out the reason arnold distanced himself and when their "romeo & romeo" play ends, in the after party to celebrate success, they all go. Then tua tells dean about all the situation because dean had been observing the change in tua's behaviour and the distance between tua and arnold as dean is tua's roommate and bestfriend too. Dean then tells tua to confront arnold and ask him the reason after listening to tua but he isn't courageous enough to do that. Tua starts drinking and gets drunk and wasted too, arnold sees tua wasted so he offers to help him to get him back to his room. When tua is a bit hungover and sees himself in his room while arnold is helping him, tua stops and asks arnold why he has been so distant lately and when he asks this with full of rage, even though he's angry, he's feeling sad more and he can't control his emotions so tua starts crying in front of arnold, arnold can't bear seeing tua cry so he hugs him and then tua pushes him back then ✨KISS✨ arnold. He gets shocked because he had thought tua was back with boston (since boston had been persisting tua a lot during their play and arnold had been looking at them every time from afar). When arnold stops tua, tua confesses his feelings towards arnold, and when arnold hears tua say that he loves him, arnold can't control himself either, instead of asking him about what's going on between him and boston, arnold just thinks that he doesn't give a fuck about anything right now and then goes wild together with tua.
