I had a "friend" just like this.
She just moved out of my place.
She dropped her husband and two kids a year ago, left them for another guy who dumped her 6 months later. Sick of her sponging off of him. She came to live with me because she had "nowhere else to go."
She moves into my place with the ex-boyfriends best friend.
She's been the victim in his eyes ever since.
Two days ago, she really screw me over during her moveout. Of course, it is MY fault. But now the two of them have a place together.
Overall he is a nice, responsible guy. However, they have only been together four months in a completely codependent relationship. Both of their bad behavior is coming out. (ie she rarely does anything for herself or the kids, certainly not cleaning and sits around unemployed for as long as she can. When he gets stressed he drinks and gets angry enough to punch his own windshield to the point where it needs replacing.)
My only wish is that they start to fight as much as I think that they will.
I had another "friend" go through the exact same thing.
Neglect gets old but so does drama.
Btw, that one "friend" tried an open relationship with her husband because she had already been messing around on him, including with his brother.
I learned this year that she was with the other brother as well (now that is a set you don't want to collect.)
It almost seems that young relationships get divided up pretty interestingly.
1. Both people actually are healthy and stay together
2. Both people are unhealthy and then they both go through a series of relationships that are just....nuts
Then there are the people who realize that not everyone is a good person or that the relationships just don't mean as much to the other person.
1. One person quits on a relationship after it isn't as much "fun" anymore. They don't learn anything and just keep repeating the pattern. Use, drop, repeat.
2. The other person learns everything they lose because of hooking up with someone who's only in it when times are good so then they search for someone much more stable and solid before they invest in a relationship again.
That one lasts.
Be the guy that learns from it.
Learn what needs to go into a relationship:
How to Improve Your Marriage Without Talking About It
Wired for Love
5 Languages of Love
Self Matters (I cringe to recommend Dr. Phil)
I know that you probably don't crave another relationship right now, but that is also the perfect time to learn about them and look for someone functional. Then you know how to screen as well, without letting emotions or sex take over.
That way when you do crave a relationship you will be ready and have learned instead of just recycling your last one.
So many people keep going through this:
Person seems really great and fun and attractive
We have a bunch of sex, spend a lot of time together
I get emotionally invested
Person gets comfortable and starts exhibiting strong neediness or drama or craziness
I try to overlook it, I've invested so much in after all
Person completely turns into needy, crazy, cold-hearted nut
Things aren't fun anymore for either one of us, we end up splitting
Oooh, look there's a new person that seems so much like X before he/she changed into a jerk! I'll go after them and spend a lot of time and energy and sex and hopefully things will work out better this time.
Hopefully I haven't been too pushy in drilling this in.