With Great Power Comes Great Responsibility?

During a road trip to Woodstock, NY I was driving up with a woman I was dating. Since I was driving I asked her to look for my camera in my knapsack. As she was rifling through my belongings she stumbled across my latest bank statement. As casually as putting on lip gloss she started leafing through the pages. I looked over and said with double my usual volume "Hey, that's not allowed."

She calmly put it away then gave me a hurt and insulted look. After ten minutes of silence she said "if you have the right to touch my breasts at will, I have the right to look at your financials." I said I don't think one has anything to do with the other. She said "You'd better think about it before you make that choice."

So let me ask you this - Does an intimate physical/emotional relationship necessarily lead to intimate financial exposure?