She is a grandmother.

↓ Transcript
Maddie: Gran, we're going to go grab a quick bite before the show. You behave.
Rosa: Of course, Dear. You saw him first.
Maddie: *tchee*
Rocky (walking away with the others): How do you walk in these things?
Rosa (continuing along with Ace): So, Ace. Since you have no surname, I suppose if you married, your wife would keep hers?
Carly: The dress or the heels?
Rocky: Left th' heels at home.
Carly: But-
Rocky: Boots. Ah am a dyke.
Ace: I suppose she'd keep her last name. Hadn't thought about it.
Rosa: Hmm . . . - So what do you think of my granddaughter?