IMHO that she is looking really hard for allegories, symbols, representations, of your love is a really good sign for a successful marriage, one that will hopefully really, without doubt or question, last "for better or worse, for richer or poorer, in sickness and in health, forsaking all others, 'tell death do you part". So when the two of you get old and wrinkled, not see or hear so well, have joint pains, the children have moved away and you don't see the grandchildren often enough, you will still have your love for each other that you celebrate with the diamond, the accomplishments of your lifetime together, the stability of your marriage, your home, big times at Thanksgiving, the Holidays, your wedding anniversary, your birthdays, the birthdays of the kids and their graduations, accomplishments, marriages, births and children, the friends you have made all along, the memories in your home, etc.

Again, IMHO, one of the biggest problems in life is solving the problem of being alone, and for nearly everyone the best solution is a really good marriage.

Here is a secret scorecard:

You give knowledge of yourselves to each other, that is, keep your spouse well informed on your thoughts and feelings.

You really care about each other.

You respect and respond to each other.

Neither of you tries to manipulate, fool, or exploit your spouse.

You can trust each other.

IMHO, it is good to do well on this scorecard.