You don't learn the skills of how to deal with conflict by simply switching partners. It is reasonable to ask, but whether you're going to get the response you want is another question. My experience is, what you see is what you get, and if there's a problem with what you see, the chances of that person changing are pretty slim. And the chances of you changing that other person are even slimmer. The only person you can change is yourself.
People change because they have to.
It helps to want to, but people won't change unless they have to. I think there's something to say for the idea of opposites attracting. I think it has to do with being complementary - when what you bring to the relationship complements what the other person brings. It makes the relationship a healthier, better place to be. I think, though, that there are also extremes.