I have had multiple business partners over the years, and realized that the most successful businesses came from partners that I argued with. I believe, in fact, that arguing is one of the most important determinate of a successful business. But only if the arguing is rooted in one foundational value: it’s in the best interest of the company.
When you and your business partner argue on ways to advance and improve the company, you are aligned. In fact, you will likely find middle ground that is even better than your own independent ideas.
But when your arguments devolve to personal attacks, that’s when you are in trouble. That’s when the business suffers.
So go ahead. Argue. Just keep the arguing limited to ways to improve your company.