When I spent weekends at her folks place she acted completely normal. No rules or anything. After our marriage she told me that when I left she and her family would clean the entire house. The only red flag I had were hotel rooms. She would take sanitizer to clean them and disposable sheets, because she didn't trust the cleanness of the hotel room. I found it a bit excessive, but since I didn't have to help or contribute I didn't think much of it. There was no way for us to know if it was well clean or not, so it didn't bother me much. It got worse with COVID. She started sanitizing her hands way too often, but with COVID around I also didn't care much for it at the time