I am an adult male and am friends with a married woman. We have plans to spend the night at a hotel on Friday night, and no this is not for sex, but to her husband it would certainly look like that especially since I've never met the guy. What is a good excuse she could use in order to be freed up to spend the night there? The obvious things like spending the night at one of her close friend's houses don't seem like they will work in light of the fact that she's never once not spent the night with him since they've been married, and they've been married for a decent amount of time. Not to mention she said that would almost definitely not work.

Hopefully there are some married people on here who may know excuses that they've used in the past to work in similar situations, but any reasonable suggestions are welcome. Also I was debating on whether or not to put it here or Personal Support, but I don't care about getting flamed if at least some people have some viable options for me.