Not sure which expectations you are referring to, but you've said a porn addiction was ruining your relationship. Is that what you are referring to?

Big hug need..... .Could you get into some couple's therapy together?.... Maybe some direction from an unbiased professional could help?

Would you be willing to give one example of something your GF wants you to change to meet certain expectations? Because if you are talking about something simple like wearing clean clothes, this is a matter of making the decision to do so and then doing it every day until it's a habit. And setting up a plan to succeed, such as every evening putting dirty clothes in the laundry hamper and every morning only choosing or wearing clean clothes. Praising ourselves every morning for putting on the clean clothes and every week for doing our laundry so we always have clean, non-smelly clothing to wear. (This is a simple example.) If you are talking about big things like not drinking or not having affairs, this may be something that therapy is needed for. That is why I ask.