In days of feudal lords and the Middle Ages are was norm, during the Soviet period is it became unacceptable, now it is in the order of things.
It is literally about 20 years ago, your husband be more younger you years on 15, or is more senior on 35 – at you would look askance and whispered behind the back. Presently is becomes norm, and the number of such marriages grows.
Whether and spouses in such marriage are happy, and whether the age difference is felt?

