OMG I thought I was the only one with SD issues! I am so glad I found this site. About a week or two before Mothers Day I always get so depressed. I am happily married to a wonderful man who has a 17 year old bio daughter. The bio mom is completely out of the picture and has been for the last 11 years. Still, my SD17 does not treat me like her mom. She sent me a text yesterday saying Happy Mothers Day! Nice, yeah, a call would have been appropriate. I am the only "mother" she has.