Karma and feelings of forgiveness sympathy and joy?

hi a while ago i fell out with someone who back-stabbed me recently they have lost their job due to the recent credit crunch and at first i felt glad but now sitting and being mature about it i can't help feeling sorry as they still are in my heart and these days life is so hard do u think it's a good time to rekindle things and move on have u ever felt like i do my friend says they hurt me so god has paid them back opinions please thanks