Friendship is a status, much like an alliance.
If I were to change my attitude to gain a few extra 'friends', then it would be fake. I am who I am, I speak my mind, and think little of feelings of those who have done wrong. I have done well that way, and I already have numerous friends, despite what you want, I will not change my entire personality to fit yours or anyone else's. You are selfish for saying that.
The attitude, spawns from you attempting to tell me, what my own personality and business will be. You, are the pompous and condescending one, not I. I attempt to join an organization without even remembering you, and instead of actually starting over, as you suggested I do with my 'attitude', you bring back old wounds and shove my own habits and traits into my face.
You also seem to think that I have an attitude, when I am quite calm and jolly today.
My dear boy, you are indeed quite angry, and you apparently have no problem in the face of telling other people what their business is based on little logic, you will make a fine dictator some day.