80% is showing up. You just have to show up tomorrow and find out what he is up to and respond to that. No second guessing, it's not possible; we can't read other people's minds no matter how hard we try/wish to.

You can't be afraid of tomorrow's session because you're not "there" yet, you're in today. You're afraid of being afraid tomorrow. That's a whole different thing. Stay in today, in the moment and don't be afraid of fear, it's just a "thought" and can't hurt you. Your imaginings about tomorrow are like the dreams you'll have tonight. Might help you see yourself better but can't affect others and their feelings and behavior.