this works for both male and female and all sexual orientations too. I will use the woman to man perspective because it is closest to me.

If you are fighting for/to keep you partner, you are in a dysfunctional relationship.

Reasons being first and foremost, your partner should not give you reason to doubt them, intentionally or non intentionally. If they do they are mentally playing games with you and you will never win.

I guess this one might should :) maybe tie for first, personally you have esteem issues if you feel the need to manipulate, coerce, play the game, etc... to keep your man. If you find yourself for instance cutting down women in front of him or feeling threatened when a woman you believe is "better" than you catches his eye, your self esteem is in the toilet.

Just thought I would share it since I was thinking of it after watching this same scenerio happen.

this seems appropriate an excerpt from TD Jakes

There are people who can walk away from you. And hear me when I tell you this! When people can walk away from you: let them walk.

I don't want you to try to talk another person into staying with you, loving you, calling you, caring about you, coming to see you, staying attached to you. I mean hang up the phone. When people can walk away from you let them walk. Your destiny is never tied to anybody that left.

If you are fighting for/to keep you partner, you are in a dysfunctional relationship.

Reasons being first and foremost, your partner should not give you reason to doubt them, intentionally or non intentionally. If they do they are mentally playing games with you and you will never win.