For some people, age is truly just a number, and they don’t see an issue with dating someone who’s much younger than them. The problem is that, over time, this difference in ages might become more apparent and end up causing friction in their relationship.
This is what a middle-aged woman faced after dating a man who was twelve years her junior, only to get broken up with when he found out she was going to become a grandma. She couldn’t believe it would make such a difference to him, and ended up devastated.
More info: Reddit