At 47 years old, Parsons shared that he had a feeling his contract for seasons 11 and 12 would signal the end of his time on the show. However, it was the difficulties of a particularly turbulent summer between the seasons that solidified his decision.

Parsons described the intensity of his schedule, transitioning immediately from wrapping up season 11 to rehearsals for his Broadway play, “Boys in the Band.” Amidst the relentless pace, he grappled with personal turmoil, notably the declining health of his beloved dog.

The heartbreaking realization struck Parsons deeply during a moment spent with his ailing pet before a commercial shoot. Despite feeling drained and conflicted, he fulfilled his commitments, only to face further anguish when his dog suffered a severe seizure, leading to the painful decision to euthanize him.

Emotionally and physically drained, Parsons continued with his Broadway performances, only to endure a painful injury after a matinee show. This series of events prompted him to reconsider his priorities and the pace of his life.

Driven by a newfound clarity and a desire for new challenges, Parsons made the courageous choice to bid farewell to “The Big Bang Theory” after the 12th season. Reflecting on his father’s premature passing, he acknowledged the importance of seizing opportunities and pursuing fresh ventures.

Upon returning to Los Angeles, Parsons candidly informed the show’s creators of his decision, expressing his need to explore different paths and experiences. While his departure marked the end of an era for the beloved sitcom, for Parsons, it signified a new chapter filled with possibilities and personal growth.