Ive got one.
This was about 6 years ago.
I was 19, she was 28/29.
Me and her were in the same Jr college math class (Math 95 I think).
For the 1st week or 2 we sat about 1 or 2 seats from each other...didn't really talk
When the teacher would ask us to do group work, me and her got together...that was when I noticed she was cute.
She would get to class like an hour early and I got to class 20 minutes early 1 day, and helped her with her hw. We made this a regular thing and we chatted about shit and stuff. Found out she was like 10 years older than me.
So finally I decided to at least ask her out for coffee or something...then if that went well...go on actual dates.
So I asked her if she wanted go grab some coffee after class one day. She took it as me asking her out...she said something to the tune of "I don't think we can date, I mean...I would feel like I would be molesting you" (I was 5'7 and like 120 at the time...she was same height...maybe like 10 pounds heavier than I).
That was the ultimate bitch slap down. That just shocked the hell out of me
The fact you thought it might work in the first place is somewhat amusing.
You're nearly 10 years younger and about her same size (maybe smaller?). Think about it man..