I don't have schizoaffective disorder, I have depression with psychotic features, but I've done this. It was more back when I wasn't medicated and although I was never gone 24 hours, I would easily be gone 6...8...whatever, just walking all over town, miles and miles, or out in the desert away from everybody and everything. I haven't done it since I've been on a more regulated medication routine with therapy mixed in. IDK if it is normal, it seemed normal to me at the time and it helped my thoughts to calm down. Also I was suicidal a lot at the time and that walking seemed to help me be more at peace. I can't say for sure if that is what is going on with your partner. It might be something to bring up to his doctor if you are able to talk to them. I'm sorry you are struggling with the worry and the fear and concern. I certainly never meant to make anyone worry about me. But I'm sure I did. HUGS Kit