Welcome SecretSquirrel: I'm sorry that you have been through 4 years of abuse and that you aren't happy, when you thing about your future with your partner. Has your partner gotten any therapy or treatment for any mental illness in the past? Is she willing to get some therapy now or perhaps go to couple's Therapy?
I am not sure I liked being forced to choose from those few options. That is not how I would best describe my situation. I would like to improve my relationship but also I have been through 4 years of emotional abuse and when I think of our future together I am not happy.
If you could put a category on your situation, what would it be? Could "Conflicted or Undecided" better describe your current situation?
I am trying to learn again how to maintain boundaries and not get manipulated.
What boundaries are you having trouble with? You are the one who has to enforce your boundaries consistently. If you aren't consistent, the result is less effective. You partner won't generally like your boundaries. They are for your benefit and protection.
Are you able to share some examples of ways she abuses you?
There are lots of links to helpful lessons in the margin to the right of this post. You might want to review your understanding about boundaries. The other lessons in the "Basic Tools" section are additional lessons to tackle after a refresh on boundaries.
We look forward to hearing more of your story.
Take care.