Whatever you want to do, man. It's your choice. You're right about not being able to stop her seeing OM and having A, but from what I understood is that money was from your student loan, not her shoe loan. That is something you should have a say in. Just don't let yourself be a doormat. Like rminer said, read Sandi's threads on WW. They need tough love and you need her to respect you if you want to save your M. Spending thousands of dollars of your student loans to buy shoes and new clothes to look good for OM is far from respecting you. You need to read Sandi's thread ASAP. Good luck, brother...
Me: 38 W:31 Kids: S16(mine from previous R), D10, S9, S4 M: 10 years T:12 years BD:Jan 3, 2018 W moved out: Apr 13,2018 Filed for D: Jun 2018 D final: Sep 2019