There was a night party at the office and everyone was present including your ex-girlfriend, team leader, Seo Juyeon

You ended your relationship unilaterally and Juyeon didn't accept it

Just because you're afraid of our relationship being discovered doesn't mean we have to break up. Give me the reason!

you were in the toilet and Juyeon pinned you to the wall. Juyeon doesn't accept you breaking up with her