My 17yr junior daughter has moved out, which feels like a natural step for my children. When I split with my ex, she said she would make sure the kids would grow up to hate me. I have full legal custody since 2019, with four of my seven kids living with me then. My two oldest were estranged, and now my third daughter has moved out as a high school junior. It's like a pattern. When they leave, they cut off contact and focus on their mom, even avoiding family members related to me. This hurts, and I wonder what I'm doing wrong. People say I'm a good parent, but I worry about losing my kids. My ex-wife has issues, but I question my own parenting, fearing I push them away unintentionally. I parent out of fear or even weakness.
Just to clarify, did she move out of your place and then in with Mom? Or is she living with friends, other relatives, on her own...?
Does she have a job? Is she staying in school? Any extracurriculars?
Step/parenting teen girls is not easy. H and I have wondered if his youngest (SD16) might do something similar -- once the parenting plan is over, or close to over, if she'll just move far away and kind of "take a break" from us. (SD16 will turn 18 during her junior year, so we may be in for something like you).
This is not the end of the book -- this is a chapter. There are more chapters to come, where your kids may need to put some pieces together for themselves, kind of an "unvarnished" experience with Mom, and then do some thinking about you.
H and I believed that our oldest (SD18) would always see Stepdad as the hero, rescuer, "real dad", etc. Every sign for a decade pointed that direction. It hurt. She is now saying she never wants a relationship with him again and is only in contact because of her half brother (B11). We can look back and see that we basically never said anything negative about him to her. She got a full unfiltered dose of him for years, without our commentary, and that's how she put the pieces together.
These are long haul relationships. We as the adults need to get adult support for many, many years, to be strong enough to still be there when the kids come back.
This stuff really hurts.