You know how it is, you get so busy that everything else gets put on the back burner to deal with later and at some point, you forget about things you knew you had to do, like a birthday party or a family event. This happens to all of us at some point and we deal with it in different ways but the result is mostly the same as you end up feeling bad about it and try to make sure it doesn't happen again.
We are not perfect creatures and fare from it so you can't really judge a person by mistakes they make in the past such as forgetting your birthday but rather the intent of the person. What I mean is that everyone is living life differently even if it seems it's the same on the outside and that can be very confusing for people when trying to connect to each other because we never really know what to expect.
For the most part, we meet that expectation and when one makes a mistake we forgive them. Just remember it's not about you when events like this happen, it's about them and why they forgot in the first place, What if someone has a bad memory and forgets everything, are you going to get upset with them? Of course not. No two persons are the same, will never be the same and no person is the same at any given time.
