To me it sounds like she wants to move on. Tell her you are going to move all your stuff out and that she can take care of the rest of the rent since she changed the locks. I wouldn't guess that she has been with another guy already and that is one reason why she isn't talking to you anymore, she is guilty and doesn't want to face what will happen after that. Personally I think she is taking you for a ride, finantially and emotionally. I can only see bad things in the future if you two get back together. You will hold these past few weeks against her and she will say that it isn't fair because the two of you were not together. She shouldn't be the one having all the fun, if she really wanted the realationship to work she would be with you working it out and not out partying and hanging on other guys. The best thing to do is just tell her that you are moving on with your live, you want your stuff and that you are no longer responsable for your half of the rent. Clean break, simple, and it will hurt for a while but in the end it will be for the best.
