Yes! Never go back! And if what broke you tries reaching out to you again, ignore them. A valuable lesson for everyone to know. If they broke you to begin with then he didn't love to fight and be better for both of you.
Nothing can happen without God's permission and God will not allow a difficulty unless He has a divine purpose for it. If you keep your peace, you'll pass the test, and God will bring you out better than you were before.