Whitney Season 1 Episode 11 : Private Parts
Whitney tries to use Alex's phone but finds that it's password-protected. Whitney tells Alex that the fact that he uses a password indicates he doesn't trust her. Alex argues that he does trust her and that he's just protective about his phone. Whitney counters that they live together, so there should be no "my" things, just "our" things. After Mark promises he can crack the password, he and Whitney and unsuccessfully try to guess it.