Something that I can never forget....

Yesterday,someone told me some very private things that I couldn't stop thinking of it.She said that ....somethings were very obvious and I kept thinking of it. =( I knew if you hurt someone's feelings it would be hard to forgive them.I could'nt make a decision.I don't wanna hurt that person's feelings.Every now and then,I keep thinking of that person.

Why?why?why can't I just forget it?