What is my dog telling me? Why did she do this?

I have a Boston Terrier/Jack Russell mix who is 16 months old. She was a little stubborn when it came to housebreaking her (and she has a chewing problem), so we keep her in a kennel anytime that we are gone. She is a great dog. In fact other than her energy, I couldn't ask for a better girl. But, regardless, she is in her kennel anytime we aren't here. HOWEVER....that being said...We got married Saturday night. We knew we were going to be gone from Sat night at about 6:00 pm until the next morning. So, we "think" that we are being nice and we let her stay out all night. Not only that, but that is an extremely long time to be in a kennel and I knew that she would have to go. I umed that she should go somewhere on the floor. Anywhere on the floor would have been ok. SHe is a small dog and I kow that she can only hold for so long. BUT NO. She pee'd in the middle of my BED...MY BED... and poo'd on a pile of hubby's clothes. Why...What she is telling me is "please find me a new home"