That is exactly how I feel.  Survivor guilt seems to match very well.  I did often feel like I needed (wanted) to rescue her and while I don’t feel any direct association with that and my own trauma as a child, I can logically see where you are going with that.  Another thing that impacts me and is one of the reasons I waited till my kids were graduated was that My biological mother left me when I was around 6 or 7.  She chose a man that didn’t want any of her baggage so she sent the baggage to child services.  My Father rescued me and my Sisters from child services and I grew up with him and my sisters ever since.  He has since passed away and my biological mother is out of the picture.  I bring this up because i’m seeing an association with THAT experience and feeling guilt about leaving my wife who I may see as a child needing rescued.  A child like me on that front porch waiting for Child Services to take me away.  My Dad rescued me that day, but who is going to rescue my Wife.

Im going to look up books on Survivor Guilt because I really think you may have hit something there.