GI Bill Question

My husband is being medically retired from the military. He’s been in for four years.

Do y’all know any thing about housing allowance even after being medically retired?

He’s telling me that he will get housing allowance if he goes to college when he gets out but he won’t ask anybody and I’m freaking out lol I don’t even know who to ask myself. this is the first thing that came to mind.

Has anyone done this? Is it true? Even after being medically retired from the military?