Although it sounds like you and this girl are good friends... this has nothing but disaster written all over it. I know you would love for someone to say, " you know what.. .dog her and screw her man.. what he doesnt know, wont kill him".. by saying that you have a moral dilemma ... well, I guess you already know what the answer is.
If you want me to be the devil on your shoulders and say it, I can't. You hang with this guy..are you going to be able to face him after the fact? If so .. then tell him now before hand. Good luck!
"Remember always, that you not only have the right to be an individual, you have an obligation to be one."
- - Eleanor Roosevelt
" It's not who we are that holds us back, it's who we think we're not."
- - Michael Nolan
"...to love and lose, is better than not to love at all..." .... Lord, whats his name....
" The world is big... I want to see all of it before it gets dark." -- John Muir