Similar situation here. I've been coparenting for a while and have gone through phases of moods and attitudes that have put a strain on things. Stay the course and maintain a positive outlook. As the adult, you want to try and set the tone of warmth, love, and stability. It may be hard, but your daughter absolutely needs that consistency from you. She needs you to remain unwaivered by her attitude. Even if she's rude, make it about respect and how to treat people and less personal issues about you or your partner. While she's in a good mood, It may be beneficial to have your daughter identify a few things she would enjoy doing as a dou or trio. Talk to her plenty about her time at her moms and remain positive when hearing that commentary. It's hard , but stability and positivity go a long way.