"Uhhh..." She's glad that Clarisse isn't looking at her when she says it, "Yeah."

The timing was really good. River left suddenly, at more or less the same time that Clarisse showed up and Abby absolutely slotted her into that same place but, "I'm glad I did."

It was good to have her there, and really, she needed somebody to be there too, some kind of physical presence in her space other than the dog. She adds, "You're really cool."