Season 2 deals with character development, including Sheldon becoming more and more obsessive. Leonard and Penny’s relationship takes a turn for the worse when they break up but is quickly resolved. Soon their relationship progresses into a stronger friendship than before, while Sheldon and Penny’s friendship slowly begins. In the season finale Penny hints at her true feelings for Leonard. Howard’s character remains similar to that of season one in his attempts to seduce women, & lastly, Rajesh manages to briefly communicate an apology to Penny without having consumed alcohol.