How Many Years is too Much of an Age Difference in A Relationship?

Tonight's topic is stemming over various life situations that have to deal with age. Bob Johnson, the original founder of BET Networks, is 78-years old and he just engaged to his long time girlfriend, 36 year old Lauren Wooden.

Also rapper Tyga 26, who notoriously dated Kylie Jenner while she was 17 years old, has reportedly been contacting a 14 year old girl.

Tonight's question is : How many years is too much of an age difference in a relationship?