A bad relationship should be terminated as soon as possible. This type of relationship is not healthy or productive, yet many will hold on rather than face the prospect of being alone until they find the right romantic partner. If the individual is abusive, either physically, mentally, or emotionally, then you should get out before things get worse. If both partners do not respect each other true love can not develop, and each person can not achieve optimal growth and success.
Don't hurt the next one because of pain from the last one! Let God heal you.
I guess the moment when everything changed was when I realized I deserved so much better.
Once you realize you deserve better, letting go will be the best decision ever.
There's nothing worse than being used, except for denying it and allowing it to continue.