Doute has been vocal about her support for Sandoval's ex-girlfriend, Ariana Madix, who was blindsided by the cheating.
She was previously in a relationship with the musician until they split in 2013.
Her infidelity with his best friend and co-star, Jax Taylor, caused the split.
Producers have invited her to return to the show to address the scandal.
Doute is considering returning but only depending on Madix's approval.
She expressed her support for her friend on social media with a kiss on the lips and cheek.
Sandoval and Madix went public with their relationship on the show almost a decade ago.
Sandoval and Leviss' affair was ongoing for at least six months, starting around June 2022.
Sources disclosed that Madix was devastated by the cheating.