She didn't tell me directly, but after what she said, it was easy enough to guess.

[ Of course it's all just miscommuncation - Ange assumes that one way or another, Masaomi is very well aware of what is up with him. No way he could otherwise suddenly feel like helping Anri out so much at random moments and even crawl into her bed and just accept he feels that was even if it's strange, right? ]

.. Listen, I'm willing to forgive the whole bed incident [ since it wasn't technically his fault, so she can't say she still faults him for it - although she's too awkward to actually apologize for it too ] if you just tell me the truth now. If you say Sonohara-san isn't with you, I'll even believe you.