My stbx will be reasonable with money until she’s not. She’ll get obsessed with a hobby and then thrift spend us into oblivion. Buying hundreds or even thousands of items that she will never be able to use in 10 lifetimes. She might buy it used but she’ll buy excessive amounts to the point where we have a single walking path thru the basement. This has happened with every hobby she gets into. She typically finds a new hobby once every 2-3 years and spends about a year buying. She once ran a multi level marketing business and bought an excessive amount of inventory to see and then never sold it. What am I dealing with here so I can understand it.