Dog Pees and Poops Inside at Husband's House?

I recently adopted a Chinese Crested mix. I brought her home with my other CC. She slept and was in a crate until I felt she could be trusted. She did not like being in the crate and after a few weeks I allowed her to begin sleeping in her bed. She only had two mishaps at the beginning and showed that she was fine over night.

I had her for about 4 weeks when we all went to visit my husband in Arizona. That's when the problems began. She did not like him, and she does show signs of not liking new people, especially men. She pooped and peed in the house. We have visited 3 more times and have tried all different techniques, but she still either poops or pees as soon as we get there. I have slept with her tethered to me and that seemed to help, but as soon as I give her freedom we find that she will pee again in the same bedroom.

When I go back to where I live and it's just she and I, there are no problems. No peeing or pooping, unless outside. I feed her once a day with treats in-between, but not excessively. She still doesn't like my husband and I just don't understand why she does it there but not in the home that I live in. She has once peed at a friend's house but never since.

Also when I am outside with her in the outside living area, she knows the difference and will only do her business when brought to an appropriate area. She knows the difference, but not when we visit my husband and our other dog. The two dogs get along fine, even though they don't play that much. She is not as affectionate as Benny is but she is very obedient with me.

She will not go near my husband even when he tries to give her a treat. I am at my wit's end. It may come down to her or a divorce. I know she is house broken, but he claims she is not because she goes in our house. Why doesn't she have the same problems in my house? Please help. What can I do to train her not to go in the house that we own together when we visit.
Thanks.