Sheldon: The two of you need to get your women in line!
Sheldon: Last night, I was strong-armed into an evening of harp music and spooning with an emotional Amy Farrah Fowler. This, on a night that I had originally designated for solving the space-time geometry in higher spin gravity and building my Lego Death Star. And why? Your gal pals, Penny and Bernadette, went out shopping for some wedding nonsense without Amy, an action they took with no thought or regard as to how it would affect me, the future of string theory, or my Lego fun time!
Howard: What do you want us to do about it?
Sheldon: You clearly weren't listening to my topic sentence: "get your women in line!" You make them apologize to Amy and set things right! I am a man of science, not someone's snuggle bunny!
Leonard: Why do I have to talk to Penny? She'd not my girlfriend.
Sheldon: You invited her to lunch four years ago. Everything about her is on you. You make it so!