For you, he's a strong parental figure in this relationship. Stronger than your attraction to his personality/appearance.
For him, your personality/appearance is VERY attractive and he also naturally likes children (people far younger than him). So, I think you are one of the most attractive people he's ever seen.
He's your 7K and you're his IW. Ideal for dating (just for fun), but not for marriage. But a huge age gap may be able to make this relationship work.