Penny: Hi. Sorry. Sheldon would like to say something to you.
Sheldon: No, I wouldn't.
Leonard: Just get in here.
Penny: Go ahead.
Sheldon: Meemaw, look, I'm sorry, but I have to defend my girlfriend to you.
Amy: Oh, Sheldon, thank you.
Sheldon: Oh, great, now you're gonna get emotional. (hands Amy a tissue from Meemaw's sleeve)