"If she's laying low, she's doing a good job of it. I haven't heard anything, and I've had an ear to the ground." A reasonable thing for anyone in this situation, especially if she'd had an encounter with Alex early on. If maybe she's feeling a bit guilty about it.

She wasn't going to pretend not to be interested.

Even if the reasons for her interest were different.

"Unless you mean you think she didn't make it out at all."