Do not let fear control you. Do not fear her emotions.
My #1 job as the man is to protect. Protect what? My family. My household. Myself. My relationships. Whatever I deem important to protect. If I have a rat in my house, it is my job to kill it. If there is a fire, I will put it out.
How do you protect? You have to do it logically with out letting your emotions drive your decisions.
Spending on Amazon is OK. Buying gifts for OM on Amazon is not. Monitor all spending. That is how you protect. Cut off anything that is not good for your family. She will get angry, but she will respect you.
If you have time, dig deeper into some of the poster I quoted. They are wise.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712
