Picture 5 / 10
![Picture 5 / 10](/./images/uploads/5/98973d3126fd311cbed.jpg)
The Friendship Contraction
Season 5, Episode 15 - Aired February 2, 2012
When Leonard grows tired of Sheldon's selfish demands, he terminates the roommate agreement and downgrades their friendship. Meanwhile, Wolowitz tries to pick his own astronaut nickname.