@T I’m going to agree with anonymous. Maybe wait. You’re all stressed out and now’s not a good time for big changes, especially for you BF who is going through a lot. Maybe just put yourself in his shoes. It’s not a nice thing to go through. Maybe stick it out a little longer not as a girlfriend but as his friend? Would that help?
But hey, if you’ve really reached that point where you can’t handle him anymore, then go. It’s your life. 😉