"let's just be friend".
Impossible if they broke ur heart. why prolong the agony? say you'll think about it, and call them, myb, in a few years.
"I value our frndship too much to date u "
Bastard. They don't love u, never have, don't even find u attractive. Move on. They'll prevent u from meeting THE ONE - and make u miserable in the process.
"I love u, but i can't be with u".
A coward. walk away, even if u paid for them to see a shrink, it is still an impossible and exhausting situation.
"you'll always have a piece of my heart".
True. save the violins, stamp on it. let them regret losing u.
"It just was the wrong time, wrong place".
The ONLY 'it was wrong time/place' was in Casablanca, which does not apply here. poor excuse.
"Im soorry. Can we try again?".
how many times have u heard this b4? Be honest. Once? shame on them. Twice? or MORE? shame on u.