End of season 2, the MC(uke) was caught cheating on Tae with the ex, and Tae ends up leaving him. Basically what was leading up to that point was Tae and MC had a fight, MC left and went back to Ex's place, then they fuck and MC regrets. MC then returns to Tae after and they resolve things but MC seems to be hiding the incident, (from then on, I don't really understand, but what I got was) Ex seems to be blackmailing or manipulating MC to have sex with him behind Tae, and after several attempts, MC and Ex were caught fucking by Tae, and then Tae is devasted and he ran off in a cab, end of season 2.
So SPOILER ALERT
End of season 2, the MC(uke) was caught cheating on Tae with the ex, and Tae ends up leaving him. Basically what was leading up to that point was Tae and MC had a fight, MC left and went back to Ex's place, then they fuck and MC regrets. MC then returns to Tae after and they resolve things but MC seems to be hiding the incident, (from then on, I don't really understand, but what I got was) Ex seems to be blackmailing or manipulating MC to have sex with him behind Tae, and after several attempts, MC and Ex were caught fucking by Tae, and then Tae is devasted and he ran off in a cab, end of season 2.