Richie Sambora opened up about his abrupt departure from Bon Jovi in the docuseries Thank You, Goodnight: The Bon Jovi Story and apologized for the circumstances that led to the split. Sambora, according to the docuseries, joined the band in 1983 as their lead guitarist and assisted in writing the songs “Come Back” and “Burning for Love”, which would appear on the band’s debut album. He remained with the band as their popularity skyrocketed, but shocked the rest of Bon Jovi and fans when he abruptly left the group in 2013.

https://screenrant.com/why-richie-sambora-quit-bon-jovi-sorry-thank-you-goodnight/