I Remember My First Painful Breakup [Painful Breakups]

It wasn't my first break up, but definitely my first painful break up
We were together for 7 years but 2 months ago i found out he was cheating on me with many other girls and he had a habit to flirt with other girls and i know some girls don't have a problem with that but i do. so after 7 years i had to break up.
I wasn't sleeping at night , everything i did and everything i saw and every song i heard was reminding me of the 7 years that we were spending together and until now it is hurting me. But i don't want to live a life of jealousy and being hurt again and again so i thought to put myself first before anything