WOW, do I not know your exact feelings! I have been married for 14 years and have two step-daughters and then 2 sons with my husband. I have been with my step-daughters since they were 5 and 3. We always had a great relationship. They have always lived with their Dad and myself and regularly visited their birth-mom. I don't know how your situation is, but when our girls started getting older, their birth Mom must have been beating herselff up for not raising her girls and from what we heard from the girls was lots of pulling at their heart-strings and making them feel guilty for them not living with her, at the current time. Anyway, I think as they gor older and had more activities in their lives and were involved in sports and activites, it got hard for them to go visit their Mom on a regular basis. This caused her to have a hard heart and she said and did things to make them feel bad. Then I think the girls started to wish they had a relationship with their birth Mom, like they did with me. When ourr oldest hit 15, something went wrong (still trying to figure that out) and she overnight started to rebel and our relationship went South in a hurry. She moved out and lived with her Mom her Senior year. then when she asked to come back home, my 15 year old daughter got made that we would let her come home after all the heart-ache she caused us, (and I think she was jealous because her birth Mom tried to make her jealous of everything she did with the older sister), so our 15 year old has recently moved out. The relationships are still rough, but I am confident that God will bring them back around some day and we will once again be close. I think life is just mentally tough in their minds, but I cared for them, treated them like my own, loved them with all my heart and even though my heart is broken today, I am confident it will be whole again! I'll keep you in my prayers! It's difficult being a step-parent. Stay real and true and have FAITH!