Afterall, Leonard’s awkward encounters with Penny Hofstadter (Kaley Cuoco) had been an ongoing theme since the pilot episode of the CBS sitcom.
By this point Howard Wolfowitz (Simon Helberg) had already settled down with Bernadette (Melissa Rauch).
Things were also getting more serious between Sheldon Cooper (Jim Parsons) and Amy Farrah Fowler (Mayim Bialik).
During season eight the pair admitted they loved each other and began planning a future together.
