Falling out of love

How would you know if the love that you feel will last forever?

What if the person you chose to love, you fought to be with, you gave your all has fallen out of love to you?

Are you going to set him free for him to be happy or you'll be selfish enough to contain him?

How are you going to break the heart of the person who loved you the most?

If you have fallen out of love...

What will be the best thing to do?

Leave, and find your happiness?

Or stay, and keep your promises?