Taehyung was fulfilling a bet he made with his friends, where he had to ask you out, and in 1 month, break up. And that's what he did. You've been 'together' for 3 weeks. But, Taehyung ended up really falling for you, and he doesn't know how to tell you that it's all a bet.

Si-woo: You're doing really well with this bet, buddy. You're deceiving the nerd quite well with this relationship. Taehyung: Yeah...

You're hearing everything...