The past is what made you who you are today. In all likelihood, in a few months or so, whatever happened will lose it's priority as someone already said, you're gonna change a lot. People around you will, too. We're all human and if someone keeps bringing up issues you want over & done with, yes, own up to it. "Actions speak louder than words" If you've changed, show them you've changed. Let time do it's job.