I dislike LKH but I do know of a woman whose husband-meeting was similar - age and age difference etc, she was recently divorced - and while she realised he had a crush she never took it seriously because he was her sons' babysitter and, you know, a kid.

He just wouldn't go away and eventually some years later, her friends said "well why not take a chance" so she did and they've been together ever since. So it CAN happen without being a grooming situation.

By the way I am so glad LKH is finally telling us something about her husband, including his name.