<human>: Can you succinctly summarize the text in 1-3 sentences?

I hope this is the right subreddit. If not, let me know.

Okay so I'm a male, age 18. The girl in question is also 18. I'll call her Sally. We met five years ago at a party and became friends quickly. She's damn good looking. Like a real stunner. Definitely at the upper limit of my league. So when we met I immediately took interest in her just based on aesthetics but for some reason I never took it further and we just stayed friends. 

Then I met someone else, I'll call her Bethel, and we were in a steady relationship for a little while. During this relationship, Sally lets me know that she was romantically interested in me but I wanted to do the right thing, so I stayed with Bethel until we broke up for other reasons. 

So now I'm single and of course Sally is in a relationship with some guy. Obviously I wished I were him but again, I wanted to do the right thing so I didn't mess with them. 

This continues for five years. Neither of us was single at the same time or we just weren't in the same circle. Regardless we remained friends this whole time, maintaining steady contact. 

Then, most recently we run into each other and she asks me if I'm single and I tell her yes and I tell her she's looking good and what not. I'm pretty certain that we could have some fun together whether its just physical or possibly more than that. 

Maybe I'm too young to be worried about this but we'll both be leaving for college so I don't want to miss an opportunity. However I think it might be foolish to try to go after a friend. Thoughts?
<bot>: This is the first time in five years that someone I find incredibly sexy and desirable is single at the same time as me. Should I go for it even though she's a friend?