How does someone distract his/her self when the mind ONLY wants to think about the one he or she loves??!!?

Answer 1

It takes a great deal of practice.

Meditation is that type of practice. It allows you to quiet your thoughts, even when they are strongly concentrated on one subject, like someone you are in love with, depression, or someone that hurt you.

It is difficult, and takes some time to get good at it, but it works.