Conflict between people is pretty much universal. There really isn’t any such thing as a relationship without “fighting.” It may take different forms (and depends on what people call a “fight”), but there is still the issue of disagreement at times. If you are looking for the “perfect” relationship, you are seeking El Dorado, i.e. that which does not exist.

I agree with Anita that you don’t need an agitator. Enough stuff happens in life that trying to deal with an intentional agitator is simply silly. No idea why somebody would intentionally do stuff like that, but some people do. Nobody needs the company of a pot-stirrer.