No win situation

For the last 2 years my AP (F45) have talked everyday day, dinners, mini vacations and great love making. Our issue is $. I am lucky that financially I can take care of all on of our activities but she feels that she needs to contribute 50-50 but she is in a different stage in her life and it would be a big burden to her and family. We keep fighting about this who is very unfortunate Any suggestions?