Investment Dating
When a guy is over 18 and can't get a girl his age so he goes after someone who is below 18 that is way out of his league but he smuthers her until she turns 18 then he marries her. Normally these guys have very little if any game, and there is at least a 5 year age difference.
Mark started investment dating Angie when she was 14 and he was 21!