I Never Want A Bad Relationship Again

Relationship Gone Bad... So I got into a relationship with someone about 8 years ago who I let move into my house. It was supposed to be a benefit to us both and things started off good, she was supposed to pay part of the mortgage, half the bills and all the standard roommate stuff, but I never really forced the topic and didn't ask for money. Things really changed after we got back from a vacation together. I had paid for the cruise and everything on the cruise and she promised to pay me back. No big deal. Shortly after getting back from the cruise she became very distant and wouldn't come home until late at night and would barely say two words to me. I told her I was running low on funds and needed her to start contributing, even if it was just $100.00 a month. She completely blew me off and I started finding receipts for hundreds of dollars at strip clubs. I got frustrated and a couple weeks later I decided to get away and go out of town for the weekend to see my parents. When I got back there were a few things missing and some indications that she had someone over when I was gone. I confronted her about it and she said no one was there, I showed her all the evidence and she continued to deny that anyone was there. Two weeks later while I was on a conference call for work she showed up with the guy she had over my house while I was out of town to help her move out. I was unable to start any kind of scene since I was working. I spent a couple years digging back out of the financial situation she got me into by promising to pay for things and never paying a dime, destroying furniture and never cleaning anything. Not to mention the emotional scaring I had from being cheated on and stolen from. You would think you could trust someone you are falling in love with and her actions have made me suspicious of several women since who did not deserve it. I can't help but think one of those relationships may have gone better if I wasn't so screwed up. I am back and open to starting a relationship again. I am over her, she is a part of my past and I guess I am better for living through the situation