Help me not divorce my wife

My wife is a major overspender. She doesn’t buy extravagant things (jewelry/luxury cars) like I’ve seen in other posts, but just consistently wastes money on everyday things. She will buy fast food for lunch when she is already at a grocery store and could make herself a sandwich. <br><br>She insists on keeping the house at 70 when it’s freezing. And then will go and waste extra money at Target buying clothes to stay warm even though she has a warm coat at home. <br><br>She bought a $40 salad last night from a restaurant and ate it at the gym. When I got home from work, she was mad that I didn’t buy groceries and then ordered delivery. <br><br>She goes to the tanning booth 3x a week and spends $80/mons on tans. <br><br>I’ve tried to talk to her. I’ve shown her our budget and explained we’re living paycheck to paycheck and saving very little. But she just refuses to change. She will be frugal for a week or 2 and then goes right back to her old ways. <br><br>What do you frugal bitches do to your spouses to get them to be frugal?