How many digits in his phone number? 7? 8? 9? 10? More? Don't really matter...

Go to a lake or the ocean. Whatever is nearer. Pick up the corresponding number of stones to the digits in his phone number. And slowly throw them one by one as far as possible into the water.

As you throw each one remember a different reason why he is an EX. Splish splash splosh. Allow your anger at him and yourself to sink forever out of sight. Never to see the light of day again.

Then wipe your hands. Turn your back on the water and go home. When you get back indoors put on your favorite piece of music and close your eyes and relax. When it finishes, breathe deeply, smile broadly and begin your life without him being in it.