Some things just gotta be that way. Everything has an explanation if you're really following the story. Because of that I don’t think I’m dropping any spoilers by saying this. That’s why I waited a few days... Asami and Megan deep down wanted what happened to happen, especially Asami. That becomes way clearer in something she says in a different scene from 0.5.6
MC actually gave both of them more than one chance for nothing to happen, and they both turned those chances down.