Should I be upset?

So my boyfriend and I’s 3 year anniversary was in May and the night before he went out with his friends till late in the morning and ended up sleeping through our anniversary date that we had planned to meet up around 10am for. He told me he’d make it up to me and keeps saying we will do it and to just wait but its been about 3 months now and still he wont even commit to a new day for it. He never did anything to show he truly felt bad, I honestly would’ve been happy with just a card. Im kind of over being mad about it now, im more so bothered that he’s brushed it off for this long and it just makes me feel like he doesnt care but i dont know, I feel like this is telling but im not sure