Mm, that's right. We live together. [She smiles, but it looks just the slightest bit sad.] No relationship I have with anyone else would undermine what he and I share.
There are limits to those other relationships, of course. But the fact that you are caring enough to ask gives me confidence that a few tests won't be a problem.
[Her fingertips brush the back of Rebecca's neck, encouraging] And I should think we could both use the comfort of a friend at the moment.