Originally Posted by
Acheleus 
I ended a relationship with a drunk who cheated on me and ruined my life.
...I look back on the abuse I suffered from this person.
... I didn't deserve to be destroyed by a sociopath.
... I was ripe for the picking for an abuser.
Could your perceptions of the lasting harm be a little exaggerated?
You life isn't ruined. You had a few months ruined, but that doesn't equate to your whole life being ruined. Plus, it's over, so your life moving forward doesn't have to be affected by this relationship.
Maybe I missed the details of what happened, but "abuse" is a usually reserved for truly horrific treatment. I'll agree you were mistreated, but abused?
And to say you've been destroyed, like saying your life was ruined, is a term that should be reserved for events that really do impact your life immensely.
I pose this because I think the words we chose to describe our situation reflect our perceptions. If you took a less drastic view of what happened and what is happening in your life, perhaps your outlook wouldn't be so dour.