Friends who aren't so aware, who just know about the big D happening this year, are like, What? Date? Already? Isn't it kind of early?
Friends try to help in the only way they know, so to them it may seem early, when to you it isn't. They don't know the whole situation, and quite frankly, it isn't any of their business what happens. Sure, at some point they will find out, but it isn't up to you to justify your actions to them.
There are moments in this life when you are so confident in the rightness of your actions, that not even for a second do you consider the option that you might be wrong.