Identify The Problem
While you might picture scaling a tall building over a stream of fire as the best way to win your girlfriend back, modern women want real answers. You need to figure out what the cause of all your problems was, and then express to your girl how you are going to work on fixing them.
Really, Truly Apologize
Some men refuse to apologize, and she might have dealt with that in the relationship in the past, but you need to show her that you’re ready to change in this regard. Instead of just saying you’re sorry, show it. For example, if you had a penchant for never making it home on time for dinner, show up at her house with a fully cooked meal at the appropriate time.
Give Her Time
People generally cannot make huge decisions in a matter of a few minutes. When you try to win her back, be willing to give her the time needed to decide if she wants to be in a relationship with you or not. It might take her days or even weeks to fully learn how to trust you again.
These ways to win your girlfriend back are not guaranteed to work every time, but they can at least give you a fighting chance.