Embarassing situation.

In this year I made a surprise party for a friend, but i didn't called everyone in my class because the party was here, at my house and there was't too much space for me to call everyone in our class. So, after the party, there were some situations where friends of mine that were invited to the party talked about her and then other persons that were closer talked "Oh, the party that you haven't invited me" and stuff like this. Worse then this was a boy who's not even my friend and complained about me with many people because he wasn't called.