I read your past posts and posted a comment then went back and reread them. You’ve been here before, you tried breaking up with her in the past and she begged you to take her back, you agreed and here you are again.

The only way for you to truly break free is to get rid of any guilt over leaving her. You must be willing to be the bad guy who dumped his fiancée. I am sorry, but I feel it is wanting to do the right thing or the fear of how your actions will be perceived that is holding you back.

You must go no contact and stay that way. It may sound childish or appear so to others around you. But for both of your sakes it must be done. Once you are gone you must not entertain any form of contact or you will relapse into a relationship again. This is the trauma bond and cycle of codependency you must break out of. You must cut off any friends who try to bring you two together. You have to write down everything she did that you did not like and read them again to remind you why you did this.

You both are highly unsuited for each other and need individual therapy to see why you stayed in such a relationship for so long. Good luck.