If a mature woman (who has never been before) starts preaching to you frequently, it will be very simple. She subconsciously changed her role, from a simple lover to a prospective spouse, and regarded you as a partner in future life.

She is not necessarily preaching your problems, but whether your relationship with her is progressing in the same way.

We are not perfect, some small things are learned in life. If your girlfriend is right, try to adjust it. I believe you two will get along better.

I don't believe in a match made in heaven, and I don't believe in the kind of love that 100% fully appreciates the shortcomings that the other party can't see.

But I believe that men and women who can get along well after careful running-in will certainly go far.