Macello

I think Bok Soo mentioned the legal act just for the benefit of the press and to emphasize that his returning is by his own will and nothing else, although I don't know why the general public doesn't know about their past (probably because the issue didn't get to the press, but just spread as "rumor" between schools?)

About the first one, really? I haven't watched the subbed version yet though so I don't really know. Maybe he thought it means Se Ho's making a move to Soo Jung after all these years, even after he betrayed him??