Admitting your wrong

Some days couples argue about stuff. This most likely is small little arguements as the couples figure out in the end -_- . In the end of the arguement if its not solved, one of them is going to notice that it's their fault for even starting about this arguement. That person will tell his/her partner that he/she is sorry, and of course the other person will forgive, because if both people really love each other, both couples cannot live in lives without each other.