Yes, my APs have tremendous difficulty understanding the issues that were new upon reunion because they reject that my reunion is an ongoing thing. They don't see my re-integration into my natural families and my growing relationships with those to whom I am genetically connected as something that is actually happening at all. Without even that most basic acceptance of reality, they are not equipped to understand anything that exists within it.
They view it more like, "You got the answers and now it's out of your system." They believe that any relationship would/will occur only AFTER they have passed and I "need" parents again. In point of fact, I needed my own (natural) parents all my life. I never had good parenting -- I was abused in my adoptive home.
I used to try to soften it for them... I used to try to leave out a lot of the details. Now I just don't worry about it anymore. They don't care at all how I feel... so now, I follow their lead. They always seem surprised that I talk to my family members every single day. They always act as though it's just not happening... plain and simple... simply because they are not in the middle of it. *sigh*
In reality, it just makes no difference. I just keep on keeping on and I have given up any hope of understanding from my adoptive parents (or family members... including extended).
No, they don't have the slightest clue and I've come to accept that. It is what it is. They are who they are and always have been... and always will be.
As am I. And, clearly, I am not what they wanted. I never was. I'm finally happy with that.
Take care!