From the moment a wolf activates, there are potential imprints everywhere. Once a wolf imprints, that pool of many possible matches narrows down to one, and so does the wolf's mind. The wolf cannot imagine a course of action that would hurt his imprint without pain, and cannot commit to hurting his imprint, even at the imprint's request. The imprint is the center of the wolf's worldview. A wolf's imprint must be a woman who is theoretically fertile. There are no other requirements. 

Scott's love for Fernanda matches her potential love for him. If she is capable of loving him in a certain way, he loves her in that way. He would do anything for her, except hurt her.

It doesn't look like something that could be trivially changed (she wasn't going to, because Scott doesn't want that, but it is important to know). And it is absurdly strong.

Is Scott capable of accepting Fernanda loving more than one person? Does the situation improve if Fernanda loves him as well?

Scott can accept her loving more than one person. He doesn't need to be her utmost priority to be happy. 

Everything about his situation is improved if she loves him as well.

Is Scott capable of loving other people? Or even just experience sexual attraction?

(This was meant to explore imprinting limits, so...)

Could Fernanda get Scott to kill someone? To torture someone? To have sex with someone? Is Scott capable of having preferences that are disagreable with Fernanda's (and aren't about imprinting safety)? Generally, is preferable for Fernanda to openly express her desires so Scott can fufill them?

Scott can love other people, but not in the way he loves her (completely, unconditionally). 

He is only attracted to her, now and in the future, and no one else.

Fernanda could get most of those things from Scott with enough convincing, but he does have his own preferences that can contradict her own. 

If she pushes hard enough, she can request anything.

Expressing her desires helps; otherwise, he'll just guess.

All of this is disturbing, but at least it's a defined form of disturbing now.

"Basically: a house elf situation."

"I'm sorry."

"Oh, don't be. With 'house elf situation' I mean that... the best thing to do now is accepting your servitude and treating you right."

"...okay. I don't want you to do things just to make me happy, if they won't make you happy. Because if you're happy, I'll be happy. Does that make sense?" 

"I understand that. I just needed to use this to be sure of what is okay asking from you and how to best treat you in return."

"And what that would be?"

"Keep him around, let him do things for me and not treat him badly." Fernanda says with a shrug. "I won't purposefully develop romantic feelings for him just because, but I can at least have some gratitude and fondness. Scott and I will need to talk more about sex, but that is a thing we could try too."

"Maybe we should try that after other things." 

Felicia quietly facepalms over Fernanda's lack of social graces.

"Of course." Fernanda says agreeably. "Do you want to test the limits of your regeneration now?"

"Sure." 

His regeneration is not as impressively beyond a human's as his other attributes. 

Fernanda informs the others on this. "Would be possible my sorcery is just not picking up how your regeneration works?"

"Maybe...should I hurt myself, so we can test it?" 

"Anesthesia first, small cut with sterelized needle. I will keep up the health-scry to see how it goes."

Felicia arranges all those things.

He bleeds. He heals.

Slower than usual, though.

"Something's wrong..."

"Any idea of what could it be? Some element of Elsewhere? Distance from your pack? Some sort of illness?"

"It has to be the pack...I don't miss them as much, but there must be other stuff going on that I didn't know about..."

Nod. "You don't have any information on lonely wolves? ...Would you mind taking off your clothes and shapeshifting in the living room to see if looks different under magic observation?"

"I don't mind."

He goes to the living room and undresses.

"We don't have any legends about that, and it's just us and the last generation, so it might never have happened before."