If you want your EX to regret leaving you, Follow this steps.

Your personal happiness is directly correlated to the amount of effort you apply to personal excellence.

Meaning, the harder you try - the happier you are.
The money, girls, and everything else are just a bonus.

The icing on the cake.
So, how hard are you trying?
Do you TRULY deserve to feel any other than misery?

Train harder.
Work harder.
Connect with high-level people.
Push your mind to think faster.

Turn more ideas into cash in your hands.
And you will be the happiest man alive.

Understand, your life is made up of moments.
You alone dictate what those moments are.

The only right answer is to spend your moments building a powerful network.
Learning the realities of the world and becoming rich.

Everything else is misery.
Learning is the greatest joy there is.