This is really NOT the same as Wally's pick up lines; he never looked that mortified...Or burst into song.

She's really, REALLY worried about what might come out of her mouth at this point; is there even a way to put 'sorry but I'm spoken for' into song form? The best she can manage is shaking her head, and really awkwardly trying to pantomime 'but it's okay, really!' And mostly just achieves waving her arms around while also looking red in the face, plus shaking her head as she tries to cool off; and convey something about how she really doesn't know what's going on.

Though in the process, she does manage to shake off at least some of that rain water, and get a little more dry.