It is uncomfortable to feel such feelings and have the other person act like they're nothing much! But, too, they are "just" feelings. I think about toddlers and their temper tantrums and how one would think they'd scar the kid for life :-) but it all comes out okay. I remember feeling when I was little that I'd "never" get over something, etc. but feelings are kind of like weather. Keep your eye on the prize; you want to get better so you sign the contract and work on the communication, etc. Bit by bit. Maybe tell him next session how "slighted" you felt not being consulted about the contract and how he's getting a bit ahead of your feelings and if he's not careful you'll cut off your nose to spite his face :-)