[It helps, probably, that it's something she's been wanting to say for a while anyhow. She can't tell, obviously, if they're working on her or not, but it doesn't really matter in the end does it?]

It's not something I particularly want to keep secret anymore, I suppose. It's simply...difficult to find the right words. Or rather, I have the words, but it's difficult to figure out how to say them...

[She's quiet for a long moment, bringing a hand up to her mouth in thought. At length she looks up at him, expression sincere and expectant] Mephisto, if I may ask first-- Do I make you happy?