According to the rule, the age of the younger partner (regardless of gender) should be no less than seven more than half the older partners age.

Is 8 year age gap too big?

The 8-year rule states that you shouldnt date anyone outside of an 8-year age range. I am aware there are possibilities where two people can successfully date with an age gap of more than eight years. Ive dated (or tried to date) women who are older, younger and, if youll believe it, exactly the same age as I am.