Minwoo better not kill himself after saying something like that. Even if Joohyun finds out how Seo really feels or that it's not mutual, that's Joohyun's to experience and deal with.
Even after having ample time to tell him he's acting that way because he loves you, you STILL decided to beat around the bush and not tell him why....even after he straight up called you out on not getting to the point.
The moment Minwoo leaves, a real predator arrives.