Please help

We have had our FS since last January he is 17months old and we are all he knows. His BF relinquished his rights last year and his BM has been non responsive to everything hearings, case workers, lawyers. We never met her. Our son has never met her. She showed up to the hearing in Nov claiming to want him but never did anything no visits went back to not responding, a few weeks ago we had mediation, our case worker advised us that the lawyers were contemplating canceling it because her own Lawyer hadn’t heard from her in months. Well she showed up clueless that we were there to discuss open adoptions. Her lawyer pulled her into a private chat and she agreed to open adoption. Well today is the for trial that was scheduled back in NOV. 30 minutes before the trial was set to begin, my caseworker calls and says that she doesn’t want to do open adoption anymore and will fight for her rights. I tried to get into the trial since it was on zoom but they didn’t pull me in, so now I’m spiraling in my emotions. Idk what will come out of this as she doesn’t have much leverage but I’ve been told our judge tends to favor the bio no matter what. Any advice and prayers is appreciated, idk how I will make it through this right now, he is my everything.