My stepdaughter just got engaged and the wedding is in one year. She and I have a good relationship, and her father and I have been married 20 years, since she was small. Her mother and I are able to make small talk but she is territorial and competitive, and I feel she would prefer I weren't a factor. Her father and I are contributing to the budget with no expectation of having a say in the plans. I would like to offer my help and support, on my stepdaughter's terms, without stepping on her mom's toes, and also avoid getting my feelings hurt. I am not sure what is appropriate or what I should expect. Any thoughts or experiences to share? Thanks!