Am I over reacting?

Carolina

My SO and I have been together 5 years on the 7th of august. We didn't do anything the day of since it was a Monday and he had to work. He said we would do something on the weekend. And we never did. He just told me he was taking a personal day off next weekend to go fishing with buddies. I told him that really upset and made me mad since we didn't do anything on our anniversary.he proceeded with saying its not a big deal and that I was too emotional. But I told him it meant a lot to me since we've had gone thru a lot together and still managed to make it together. Am I over reacting and being too emotional?