Change the mistakes you did before and make her feel why she fell in love with you in the first place
Tell her tht you were being a jerk and your srry for what you did and then take her out on a date or a picnic
You can not make anybody love anything, at best you can only hope they come to the choice which is beneficial to your plight.
Well your name is Chance....
Can't force anyone to fall in love with you or with you again... It comes naturally... You can "possibly" make them wonder about you only... You simply give them gifts or leave thoughtful messages. Or take the direct chaotic way and beg for another chance. That sometimes works.
No one will ever magically love you. Love is powerful thing, and if you abuse it, it back fires. I guess it depends what you did, or what she did, or whats the situation. But love comes and goes. If you want her to love you again, show her where your heart is at.
Give her time and gifts