<human>: Can you provide a brief rundown of the text in within 3 sentences?

Like the post says, I purchased a home with my fiance last year. We split up at the beginning of this year, but continued to live together while we tried to sell. We haven't had any luck on the sale and are now trying to short-sell. I moved out a couple months ago and she had the locks changed a couple weeks ago. I just removed the last of my things this weekend. My ex had thrown almost all of my stuff into the garage and locked the door into the home. There were a couple things I knew were still there, but she wouldn't open the door for me to get them. There was no arguing, yelling, or anything of the sort. I called the local PD for them to come as it was my understanding that unless there is a court order, I should be allowed into my home. The officer went inside and my ex set out most of my things, but not all of them. The officer then informed me that, since I had moved out, I was not allowed on the property without consent or I would be arrested for trespassing. He also refused to do anything regarding the last of my belongings (DirecTV box) that my ex hadn't given. At this point, I'm not living in my house, nor am I allowed on the property. Both our names are on the deed and on the mortgage. Can I quit paying without penalty besides the possibility of foreclosure, or can my ex come after me for half the payment?
<bot>: I don't live in my house and am supposedly not allowed on the property without permission from my ex. Can I quit paying my half of the mortgage, or would she be able to come after me for it?