Caroline breaks up with Robbie for Max on the episode "And The Break-Up Scene." As you might expect, it doesn't go smoothly.
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2 Broke Girls Season 1 Episode 2 Quotes

Max: The apartment is two blocks away.
Caroline: Yes I know, two blocks and fifteen "hola chicas!" away.

Max: You took money from a homeless man?
Caroline: I prefer to think of Bob near the bridge as our first investor.