My (22) boyfriend and I (22) have a games night with our friends on the weekends every once in a while, and I planned a Christmas dinner/games night with them all for this Sunday.  It’ll be at his dads place, which is new and fairly roomy. His dad is never there, so we take care of the house (2 story, basement, 3 bathroom, 4 bedroom) just us two. 

I planned to cook an entire meal for everyone (11 people including us) , being a couple of beef roasts, mashed potatoes, veggies, desserts..etc. We’ve yet to get groceries/decorations because we’ve both had a busy work week. I talked with him loosely about going out tonight to get groceries after he’s done helping a buddy with some body work on his car. Early today we talked about seeing eachother tonight still. 

He was seeing a different buddy (a long time friend, one who will be at the party on Sunday) tomorrow just to hangout for half the day, but not long ago today he asked if it was alright if he could sleepover at his place tonight.  It stressed me out (I have a serious anxiety disorder) because I was expecting one thing and he kind of surprised me by changing the plans around that I had set in my head. I told him we had a lot to do still to prepare for Sunday, and he said okay and that he had canceled the plans, but I knew I upset him by the way the tone of his messages changed. 
I got even more stressed and upset because I knew I upset him and I felt like an asshole for seemingly “making” him do this all with me. 
He was supposed to hangout with his friend for a bit tomorrow(Saturday), while I would bake cookies and start preparing. So, it’s hard for me to understand why I am such a bad guy here. I get that he sees this friend often during our game nights, but not just the two of them alone, so he was looking forward to that.. but why couldn’t he just see him tomorrow? Maybe when I was upset, it upset him, like the way I felt?.. I don’t know. He shuts down when we fight, and needs space while I just want to resolve things and feel better ASAP.  We are trying to work on our communication, because it’s not the best. 

I’m very stressed about doing all the preparing for myself now. I don’t have a car to get around places.  We ended up having a fight, and I feel horrible about it all. 

Maybe I can’t see what I’m doing wrong. AITA?
