The show doesn't ignore Sheldon’s germaphobia; it acknowledges it and shows him moving past it because the person matters more than the "messy mixing of bodily fluids".
The return of Bob Newhart as Arthur Jeffries (Professor Proton) in the form of a "Force Ghost" serves as Sheldon’s subconscious moral compass, pushing him to realize that "being with [Amy] is more important" than a movie. Episode 11: The Opening Night Excitation
" The Opening Night Excitation " (Season 9, Episode 11) is the highest-rated episode of The Big Bang Theory , marking a seismic shift in the series' DNA by finally bringing together its two most significant themes: and human intimacy . The Convergence of Two Religions The Convergence of Two Religions Sheldon chooses Amy’s
Sheldon chooses Amy’s birthday over a premiere he has waited a decade for. For a character defined by obsessive-compulsive adherence to his own desires, this is the ultimate proof of love. His willingness to "find out together" marks his
Sheldon admits to Amy that he is nervous because he doesn't know what to expect. His willingness to "find out together" marks his transition from an observer of human life to an active participant. Subverting the Sitcom Trope
Sheldon and Amy consummating their relationship after five years of dating.