Girlfriended

To be categorised separately from someone's main social group.

Refers to the act of not allowing your social life to crossover with your sex life.

Person 1: I'm heading out for my 18th with my mates.

Person 2: Oh hey how come you didn't ask me to join?

Person 1: Nah we'll do something on the weekend for it.

Person 2: Woah since when have I been girlfriended?