Please Help Me Understand My Bipolar Fiance's Behavior

Hi,
I am new here. I need some help coping.

I have been with my fiance for 6 years. She stopped taking her meds a year ago due to the side effects.I am reaching the point where I might have to walk away. I am hopoing if I understand why she acts the way she does I can better manage it.
Here is what is causing a lot of the problems:

She requires excessive praise and attention all the time. If she gets her hair done and I tell her 15 times that it looks wonderful she looks at me and says "I can tell you don't like it". It is frustrating because I want to be loving and supportive but no matter how many times I compliment her or how excited I am in doing it it is never enough. This usually leads to a fight.

She starts fights out of thin air. I can see it coming like a train down the tracks. I once fed the cats too much food and it almost ended our relationship. That's how bad she fought me about it. I am on eggshells constantly and as a result try to interact as little as possible. The more I say the more ammo she has to start a fight. So now she gets mad about me not talking and interacting. And the fun part is in the end, even though she is acting completely irrationally and inappropriately I am the one who always ends up apologizing. She is also a great manipulater.


She is constantly running me into the ground. She uses words like "domineering, cruel, lazy, and untrustworthy" to describe me. No one I know in my life would even think of applying those words to me. Why does she seem to view me as such a terrible person? I try so hard to be I even read The 5 Languages of Love. Why would she want to be with someone she thinks is so terrible? In my life I am generally considered a really nice guy. Sometimes I am told I am too nice.

Her new thing is accusing me of lying. If I get the smallest detail of a story wrong she views it as deception. If I told her I had a cup of coffee and then later remember I was going to get coffee but decided to get tea instead she will view that as a lie.

She even hit me once. I told her if she ever did it again it was over. She responded by saying "Don't make me hit you again".

From what I read she has many Narcissistic tendencies but she also has very low self esteem. Everytime she looks in a mirror she mentions how ugly she is. But she is considered by many including myself to be a knock-out.

If anyone can please help me understand why she acts this way I would appreciate it. The only emotions I feel these days are stress, fear, frustration, resentment, sadness, regret, and guilt. I don't think I can go on like this.




Thanks and God Bless.