I hope you dont take this the wrong way as I have been following this for a while
I guess you didnt have a backup plan, it seemed your plan was he would “recover” , you would pray , say tehillim and he would go back to the yeshiva and love it.
You never seemed to have a plan b, even though they were suggested and now plan A seems to have failed you are lost.
There is nothing wrong with a Plan B, hopefully you can make one quickly