Fuckin pissed

I had some money stashed away for our 5 yr olds birthday party this weekend it was supposed to be the food shopping money for it because we will have up to 40 people here found out my S/O spend everything besides 45 bucks he goes gets breakfast every morning for himself after work well now i have to come up with this money that he spent he doesnt understand y im pissed.... And he doesnt pay any bills in our place i pay and work for all the bills i just had shoulder surgery last week im off for 2 months hes all upset now cuz he has to pay the bills OUR BILLS ARE ONLY 260!