Sheldon: I must say, I am shocked by this betrayal.
Leonard: I didn't betray Penny.
Sheldon: Not Penny, me!
Leonard: How am I betraying you?
Sheldon: Elizabeth's my friend, and you're playing with her!
[Storms off to his room]
Leonard: Yeah, I guess I did.
Leonard: I didn't betray Penny.
Sheldon: Not Penny, me!
Leonard: How am I betraying you?
Sheldon: Elizabeth's my friend, and you're playing with her!
[Storms off to his room]
Leonard: Yeah, I guess I did.
Sheldon : I must say, I am shocked by this betrayal.
Leonard : I didn't betray Penny.
Sheldon : Not Penny, me!
Leonard : How am I betraying you?
Sheldon : Elizabeth's my friend, and you're playing with her!
[Storms off to his room]
Leonard : Yeah, I guess I did.
http://www.tv-quotes.com/shows/the-big-bang-theory/quote_20934.html