12 Excuses We Make to Avoid Saying I'm Sorry-MainPhoto
3. Saying ‘I’m sorry’ shows weakness
 To the contrary, it shows you are confident and strong enough to risk rejection and humble enough to admit your faults.

4. He/she hurt me first
An eye for an eye attitude fosters bitterness. It is a childish attitude and by admitting your fault you open the channels of communication and allow the other person to feel safe in the event that he decides to honestly say he´s sorry too.