Funny moment. I love the immaturity of the character. It’s also quite ironic that she calls him ‘sweetie’ after telling him to be more grown up. It’s a pet-name that I, personally, associate with children. I could be wrong. But if it’s deliberate, it’s very clever.
The last sentence is a good opener for the next sequel (if there will be one) – creates a nice element of mystery to follow up the comedy! 5 pencils as always…
punpun 
Abby (LoA)