P.S. I'd say SHE needs to be a little more direct here...
"GH, I know we agreed on the plans, but I'm regretting it. I don't feel able to deal with a weekend alone with you, I'm afraid there will be too many expectations."
If money were the problem, the spending spree wouldn't work for her either. And, if a spending spree is really more important to her than a weekend alone with you in general, then that is a whole other problem. I'd say you'd need to insist on your R being more of a priority.
