I have been in your shoes, and know your pain all too well, as have many others. Some things are just not meant to be, --this took me a very long time to accept. We put our rottie boy down at only 1 year old, as he was from a BYB and although we had him since 7 weeks, the damage was done.
I learned so many lessons from Zeke, and found my dream girl Makita because of it. Sometimes the end is only the beginning. I am very sorry you had to go through this.
Prayers are with you.