Dear flattering freshman,
You made my day.  I may be far too old for you, but that you for reminding me that I am still fairly young and attractive and could have a life full of possibilities and intrigue.  I'm going to put on some heels and a summer dress and take on the town.  I'm not ready to look at other guys yet, but I don't think I mind when they look at me.

Sincerely,
Flattered and blushing

P.S. I've missed having auburn hair.  <3