Should I confront him? And, how would you feel?

My boyfriend said that part of my Christmas gift would be for him to use his two half price day passes to our local ski area on me. He said that he could cover the cost that was left over. Today we went, and he asked me if I had money and I said yes, and when we got to the counter he just let me pay. THEN it turns out I got an adult ticket, which was 10 dollars more. (He was the one that went through the process of buying it since he had the half day pass, I just put my card in) I didn’t realize till later, and he was like “aw sorry dude”. He didn’t offer to reimburse me for his mistake or anything. We talked about how hungry we were, and he was like “I’ll buy ya a slice of pizza when we get back to town.” When we get to the pizza place he orders three slices then pays, then eats them all. He pays for lots of things for me, but I just felt that this was rude. How would you feel? Would you confront him?