
did haesoo just get dumped?

its cuz he is realizing the relationship he had with Haesoo has basically all just been playing pretend (or putting on a play as he said) he doesn't want the show to end but is now the curtains are closing on his relationship with Haesoo.
Taku wants to stay with Haesoo even though he knows Haesoo is in love with Joowon.
Why they stopped red hair guy at the trial?
I think it's because he was going to say that it was because Shuli looks like the queen who passed away but I'm not positive. The translation was a little rough this chapter