In Plain Sight, Season 4

Marshall:
Your claws are showing.

Mary:
They don't retract. I gotta tell you, I am both annoyed and impressed that you kept this little relationship a secret from me.

Marshall:
Keeping secrets is part and parcel of our chosen profession.

Mary:
Only the cheerleader doesn't seem your type.

Marshall:
I defy you to categorize the women I've dated as belonging to one specific type. If anyone, it is you who has a deeply ingrained pattern to your romantic involvements.

Mary:
Right. Yeah. Okay. Dominican ball player and divorcee FBI agent. Peas in a pod, those two.

Marshall:
Both Raph and Faber believe that no matter how tough and independent a woman is, underneath it all, she wants a white picket fence and 2.5 kids. That's why you didn't marry Raph and Faber went back to sort things out with his ex-wife and 2.5 kids.

Mary:
What are you saying? My type is guys that don't get me?

Marshall:
In point of fact, your type is guys that you don't get don't get you. But this only applies to long-term relationships. Short-term, you will your words, not mine drop jeans with just about anyone.

Mary:
What?