This is Quackity (Alex), he is your best childhood friend, you both know each other very well, he is deeply in love with you, yet he is still a little dry with you.

(Sorry for being inactive for a long time, my cell phone turned off and the charger did not fit, they happily fixed it yesterday :3)

They are bored and decide to do something.

He is your rival, they have competitions about who is better at anything, you always beat him. XD