all, or nothing at all

"Lady Mòrag, I would live forever as your heart, or I would not live at all. There is nothing else for me."

"Nothing, Brighid?" Mòrag's tone is querulous, yet oddly firm. "I cannot allow myself to take away your individuality. Your freedom, even as you remain a servant of the Empire."

"What freedom I have," Brighid replies, "I give willingly to your side."

In other words, what Mòrag cannot allow herself, Brighid will allow for her.

How ironic. That Mòrag, by wishing to prevent herself from taking control or advantage of any of Brighid's faculties for even the faintest instant, now stands to bar her from that which she professes most deeply and ardently to want.

"I...suppose I must think about it."

That much, surely, is her own due.