I'm 22, he's 42, why is he trying to pursue me?

To be honest by he looks like he is 30 that's why I was shocked when I found out how old he is. He is really good looking, def a womanizer back in the day but its clear he is over that now. I don't think I could ever go out with someone that much older than me, but I'm curious why someone that much older than me would even want to pursue me? Wouldn't he have more in common with women who are his own age?
I'm 22, he's 42, why is he trying to pursue me?
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