You'll never know unless you try! In the meantime, you could be missing out on a chance to make new friends. I have had a couple times in my life where I crossed paths with someone years later and they either no longer cared about a past problem or put it behind them. (Including one person who confessed that I never liked you cause so-and-so said such and such, and now it turns out so-and-so was a pathological liar all along - I can't believe I listened to her bad talk people!)
