Not only is he relatively new to recovery, he also was kicked out of school and has to figure out -for himself- where to go from there. What he is going to do with his life. I'm sure he is depressed about having messed up and getting himself kicked out of school, I know I would be.
The guy has a lot on his plate. He has asked that you let him sort it all out. Respect that.
I would think you have a lot on your plate too. Veterinary school?