Love could be unhealthy if the person motivated by it wound up doing some very questionable things. Luz had come to slowly understand that over time and watching enough anime.

"That's...a good thing then, that Tutu would want to do that for Mytho. Why would Krahe want to prevent that? She seems to like Mytho too, so why...and now that I think about it, I probably just answered my own question, didn't I?"

Unhealthy people didn't exactly perform the best kinds of actions, did they?