Hi Tame,
I went through a long spell like this about 5 years ago and I still go through bouts of this from time to time. For me it was all about the anxiety, the fear of leaving home which is my safe place. I was so into "what if?" thinking that I could not get out the door. It would be "what if I break down in public ?" most of the time or "what if my anxiety gets worse while I am out in public?" and on and on.
What worked for me and still does is having my hubby drive me someplace and wait in the car for me while I run in the library or when I have a Drs. appointment. Just knowing that I have a support person near by and also a get away vehicle helps me feel safe on days when I start to feel like I "cannot" leave home.
I also write down what I plan to do each day and do my best to keep my goals as I need to work hard at not hiding out from the anxiety.
Perhaps you could encourage your bf to make a goal of going out to do one thing daily until he gets back to where he can just go out without worrying about it.
Anxiety is nasty as you can feel good and be functioning well and then whap, something sneaks up on you the causes the anxiety to spike.
I wish you well and hope your bf can break through this problem.
Kindly,
Kitt