Jorge, if u have such problem with this other dominating guy, i suggest may be not because of this girl but because of you - to sign up for kickboxing or boxing, knowing martial arts highers your selfesteem, and you feel more comfortable with yourself.And ofcourse if you start DHV infront of this guy if things get ugly u can always kick his ass too - which in high school used to work quite good for me.
Its very simple - lets say you are more confident now with sarging and so, your words come out in a better way and u have no problem making people laugh (not the clown-way) and beeing center of attention.There will be always this asshole who you will kill with few words but then he may ask to bring this outside, if they kick ur ass u will be DLV big time.
May be im wrong, im just saying in my expirience - knowing martial arts just helped me beeing more popular and most important - more confident with myself.Ofcourse without my social skills that would be far from enough, but they develope only based on how u feel about yourself and practice.
But a very easy way to DHV over this guy is find 2 very hot chicks from other school or just from somewhere that they cant possible know ur friends, or ur friends know them, play the following routine:
you hanging out with ur girl and the AMOG they should approach you and say:
"Hey how u doing?You are Jorge right?"
"Yes i am, do i know you girls?"
"No but my brother is in your kick-box class, we saw you the other day and we was wondering if you would like to hang out with us this friday, my friend is having a birthday and will have some party at her house", they introduce themself
Just instruct them when the alpha guy shoots some lines to cut him off and say they was talking to you not to him
and here u go... with 5 minutes u are already DHV in few aspects:
hotter girls like u not the alpha
alpha finds out u go to kick box classes
girls finds out other hotter girls like u
girls finds out u training martial arts
Man you are like a superstar
I have few years older sister so i always used her friends to help me do the same things in high school.
PS: Dont say no to the girls, just say u will get back to them tomorrow on that and that u thanking for the invitation.
Just an idea, who knows, may be a bad one may be not.