She doesn't question their relationship.
What Sathya (Pakhi) does is hold Vikram's hand in front of everyone/public and tells him to come inside.
So Saranya says this female is behind my husband, always finding reasons to come to our room, reason to touch him or spend time with him. She doesn't care about her missing husband, but only wants to care about mine. Looks at house she is holding his hand in front of everyone.
She doesn't say anything about Vikram.
Ok.
Ek cheez bataiye samrat ki vajah kya thi ghar vapas na aane ki ?