The Bold and the Beautiful spoilers say that

Sheila will recall the events that led to her

kidnapping. She blames Sugar, who had a

vendetta against her. She swears to Finn that

she wouldn’t hurt his wife. She wants nothing more than to be accepted into his family.

Finn realized that Sheila was a victim and likely would need support. She may need more than Deacon can provide, offering his help to get Sheila back on track. At this point, Finn likely hasn’t told Steffy about his adventure with Deacon or finding Sheila in such bad shape.

Finn Vows to Support Traumatized Sheila Despite Steffy’s Objections
Sheila tells Finn she doesn’t want to cause trouble in his marriage. She knows that Steffy must hate her even more. She cannot imagine how scared Steffy must have been to stab Sugar. She apologizes for the situation causing so much trouble for him, not to mention the grief and anxiety they felt about her death.

The Bold and the Beautiful spoilers say that Finn surprises Steffy again when he says he plans to support Sheila, even if it makes her uncomfortable. He vows to keep in contact with Sheila, urging Steffy to see Sheila as a victim in this situation. He thinks his mom has changed and wants her to be eventually welcomed into their family.