Continue as you have been. There is no rhyme or reason to their behavior. Sometimes they will do a good deed and that is when you need to recognize that deed and thank them. Other times, well...they can be 2 year olds having tantrums.
Try not to over analyze her every word or action. It will drive you nuts if you do this.
Dig deeper for patience and keep the focus on you and your family.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
