Opposites

How does one date their polar opposite, previously I always thought how could it be a problem because each would have what the other lacked but lately the contrast between "Billy"and I is bothersome. I am more of a revolutionary whereas he is more of a loyalist. That difference in its self is hard to deal with what do you say to a guy that debates against peaceful ideals? One day perhaps 20 years in the future I want to make a difference, yes that is common ambition but I really do want to make a change for the better on a international scale; "Billy" doesn't share that vision he sees himself (ideally) has a sort of Hegemon. That wouldn't be so bad if he weren't fascinated by the military and weapons. Since I find it unlikely that we'd still be together then I wonder what will indeed happen, we both have the intelligence to conquer such ambitions... A scary thought.
Today I came to the realisation that either I accept "Billy" or leave, the affection I feel for him is still strong and all though I am against his beliefs I still charish his presence, but do we really work? I know this is rather cliche but I'm very against the unjust cruelty of animals/ humans that can't defend themselves, he thinks i'm being absurd! Not only that he even tries to make it sound justified! He isn't sadistic or even a mean person but his humour can be so twisted I can't help but be a little upset. He doesn't seem to understand that I am a VERY empathetic person and saying things like that break my heart because when I read/ hear about a innocent being/ animal getting hurt I almost feel their pain clawing away at me, the yelp of a kicked dog or the cry of a little girl. It all gets to me.
Someday and mark my words I will try as hard as I can to create peace within nations of course talking about it won't do anything and If I make it a little to aparent what I'm after people higher up then me will just look upon me and laugh saying i'm young and naive which I really am but I won't let the fire die. I will keep my mouth shut about what i'm truely after until i'm at a level where I can say it a little more freely and perhaps gain respect from it, which is something I would never get now.
However, I could be taking myself WAY to seriously I mean I am still in highschool and I'm thinking of majoring in Psychology when I goto the U of S and then later on when i've earned at least a bachlors I may go on to medical school and then use both backgrounds for conducting studies. I realise why take psychology AND medical school when I could just be a psychiatrist but that isn't a career i'm after I want to do medical research, perhaps unlock the subconcious or alter the genetics of organisms to create super humans :P