Despite the fact that Rey Rosales had a clear interest in Sharon Newman when his estranged wife, Mia Rosales, came to Genoa City, he felt a responsibility to try to repair his marriage (via Soaps in Depth). He let Mia move in with him despite everything she had done to him. Even after she drunkenly exposed her and Arturo Rosales' past affair at a public party, Rey still remained loyal. Eventually, Mia convinced Rey to renew their wedding vows officially, and they planned a re-commitment ceremony for January 2019, even though she was still trying to convince Arturo that there was something between them, per Soap Dirt.

Unfortunately, Arturo decided to steal the spotlight from his brother and sister-in-law/ex-lover by getting down on one knee and proposing to his girlfriend, Abby Newman. It seemed to viewers like Arturo and Mia's respective selfishness made them perfect for each other. They both proved their disregard for Rey again when he went out of town on a business trip with Sharon Newman (via Soap Central). Mia believed the two were having an affair, and she looked to Arturo for comfort leading to a scandalous tryst. Mia might have gotten away with her indiscretion if she didn't later call out Arturo's name while in bed with her husband Rey.