First of all, she first said that she would be supportive of his financial situation and said she was empathetic of his setbacks. She even said it was frustrating when Wayne keeps everything inside. And then, the second he lets her in and tells her that he made a mistake (he admitted it was stupid) by investing $2000 USD into crypto, she gets disproportionately angry about it and storms off, telling him that he doesn’t understand the severity of this.
All that did was ensure that Wayne keeps everything inside going forward and never shares anything with her again.
Why marry a man if you have no intention of staying with him in his country?
I think she thought they’d get married and then they would move house to a safer location. Unfortunately Wayne’s financial situation changed in that time and moving wasn’t a viable option for the foreseeable future. A vacation is also a lot different from living somewhere. When her mum left and Wayne was working to recovery his loses she was spending more time alone in the house.
Time alone living in your head is a recipe for doubts to set in.