TJ,
Although good (and important!!) to keep some links with the outside world, I'm guessing it was still pretty tough getting the visit? Where you stayed calm for your mum and put on a brave face, there must have been a lot sill going on inside of you, hey? And maybe some of that, the isolation and your surroundings have caught up with you. But remember this isn't "going to be forever". It may feel like it right now, but..........it's not!!
And you know there is a reason you're there if it's going to help with your safety and stabilizing you. And the stabilizing bit........well............that's the door to getting out and being able to live a much better life than you were before. And to having relationships with those around you (inc. your wife!) that aren't going to be overshadowed by the pain you were going through.
I know you're feeling really bad now, but maybe some of that is due to them trying to find the right/right balance of medications, hey? And a little time for them to manage that.....?
So just try to hold on in there, you know the old script- deep breathes, relaxation/grounding techniques, talking...........- things can get better.
And share with them, share with us, anything/everything that might help just a bit.

Alison