"Don't tempt me," he murmurs at her, touching her cheek with fondness. "I think it's just one of the sacrifices I have to make." He tucks her hair behind her ear, loving the look in her eyes in the afterglow.

He didn't want to let her leave and go back to her universe, but - he also wouldn't stop her if she wanted to go. "We might have already caused an incursion, but - I'm sure it's worth it."