These questions are really difficult to answer, especially when the Cupid’s arrow strikes and you fall in love with a person who is 10 years your senior or 15 years younger to you. In historic times, it was common for a man of 30 or 40 years to marry a teenage girl. Then came the period where the difference ranged between two and seven years, with the man being older. The logic was simple: the man would be the bread winner while the wife would provide babies.