Generally I don't notice I hurt their feelings during the fight. It's afterward and they let me know I hurt their feelings that I apologize. I'm really not that observant when it comes to knowing if I hurt someone's feelings and I truly don't communicate with people that much in person (phone job). I would rather someone text/e-mail me if they need to reach me. I hate talking on the phone. So disagreements don't happen face-to-face anyway. And I generally don't argue with people unless I know I'm right about something.