[X] Say you'll explain later. Talk about it with only the people who actually need to know. You aren't sure how Ikutsuki will react to it, but it means he won't be in the room... or Morgana or Junpei-san, which is what you're more worried about.
[X] Just spell out all the facts. Lay them out, right on the table, as bluntly as you can. He's not the only one who can keep himself emotionally detached from a conversation, right?
[X] This really isn't something you should make light of. On the other hand, this is the perfect opportunity to crush Ikutsuki's hopes for your future. Decisions, decisions...