How to win back her trust?
Admit: Never deny your mistakes. This makes the woman lose more trust on you and is also discouraged to continue the relationship. To win back her trust, accept your mistakes and justify to the fullest. Even if she doesn't want to hear, put forward the reasons calmly behind lying to her.
Let it go: It is best to let the bygones be bygones. Instead of sticking to the past, move on and start your relationship afresh. Thinking on the same old mistake spoils the mood and de-motivates the chances of moving on...
Be patient: Don't forget that you have committed a mistake which can't be forgiven in worst cases. To win her trust back and make the woman feel comfortable with you, be patient. Don't force her to trust you. You can win it and not buy with force.
Promise to never repeat: This is very important way to win her trust back forever. To make the woman trust you and strengthen your relationship, take time and when the time comes, promise her. Don't promise her immediately after losing her trust. It can sound fake and temporary.
Start sharing: To win her trust back permanently, start sharing your day's activities with her. Make her believe that you are not hiding anything from her anymore and not even cheating on her. Gradually she will start trusting you.
Try these ways to win her trust back and get her faith in you.