A less romantic interpretation:
K: "So then she was like 'Wha?' and I was like 'Dude, no way', that's, like, totally whatever, ya'know?"
D: thoroughly annoyed
K: not getting the hint "Right? It was totally, like, ...blahblahblah"
D: slaps hand over K's mouth "Ok, darling, you can shut up now."
K: captivated by D's sudden dominance "okay"