I agree it was emotional cheating except for chap 33 which was obviously SA, actually all three times was SA but the point is that his feelings wavered and he wanted to do it with someone else, anyone, not necessarily the neighbour. And he acknowledged that he liked n responded the kiss. It's SA with emotional cheating imo. And he refused to accept that at one point his feelings for his bf were weaker than his desire for thrill n he basically just cared about being loved n not about loving the other n hence he was prone to harbouring such thoughts. The author seems to be saying that such things are inevitable n "trivial' over which most couples fight. Oh well. Personally this wasn't really good for my mental health haha.
Tom is a cheater. And I really don't like his attitude after being raped like he's expecting Jaemin to apologize to him?, feel bad for him? and fix everything for him?... I don't know. I regret reading this.