我做的对吗？

My ex boss IMed me the other day... asked me if i could provide feedback on the guy in India whom I had actually wanted to visit... but let me down terribly, caused me lots of heartache...

apparently, somebody in my old company is interested to get him into a project in India.. so that somebody has approached my ex boss to give feedback... and since she knows we are rather close, she approached me...

i thought i would do whatever that is correct.. i thought i could feel nothing and just give appropriate judgement on his work performance... maybe i was wrong...

i had my own little angel and devil fight about my head before i could even reply my ex boss... i was clouded by what he did to me on a personal basis and wanted to ruin his chances for the job.. and i know, i just need to tell one person his work reputation is not good, it might just weaken his chances in the future... but yet, my little angel say even if he has hurt me badly, i should still be gracious enough to say the truth about his work performance..

....so eventually, angel won..

i had mixed opinions about how i should react in this kind of situation.. some say i should just say i am too personal a friend to give professional feedback, some say i should have just backstabbed him, some say they would do whatever i have done....

so what's your take?