Is it wrong? ... short answer no, its no more wrong to want to have him out of your life than it is than pulling out a sliver that causes your hand pain. Its called self preservation and its one of those primal instincts we all have.
Detaching was very difficult for me aswell. Heck I am not so certain I am fully detached all this time in, but I can tell you I am light years removed from where I was. I found as much as the GAL stuff seemed like hogwash at first, its taken over my life, made me so insanely busy that I really have little time to sit and think about my MLCr nor the sitch.
reading this last post, seems you are starting the mirror work, I too had that scared little boy I needed to deal with, the one left by his alcoholic parents to tend to the 2 younger brothers, dinner, shower, bed while they drank themselves into oblivion only to come home and fight half the time, or clank around the pots and pans making their own meals. It took a good deal of dealing with that little boy before I started to really get myself back on track ... so in a very strange way this "Gift of time" (again I rolled my eyes at hearing the vets chime this about the boards) truly was a break I was not aware that I desperately needed, time to fix the little scared broken me that I forgot was even there until BD.
I too struggle with the "out" God seems to have given me. I can not tell you what it means for you ... for me every prayer I have sent up has been returned with a "Wait my son" message tied to it. So not sure if its me who needs more time to work on my stuff, if its her, maybe both .. all I know is I am personally not where I need to be, I am no where healed enough but I keep working every day to be better than the last which is the ONLY thing I have control over ... this took a very long time to learn and even longer to accept.
They will tell you they do not love you, that shark like blank stare their eyes will confirm to you the spark is gone, they are gone .... I would not put alot of faith in anything a MLCr says ... good/bad/ugly .. none of it really, they are desperate to stop the pain and will do/say just about anything they can think of to stop the pain even if its a short term fix. Yes ... they are so very lost and absolutely miserable and those closest are the ones they will blame for all this .... its just the way a MLCr behaves.
Turn that focus inward ... deal with that little girl who was abandoned and realize this BD has resurrected suppressed demons you have held at bay till now. Its time to work on that part and let him and his crisis run its course.