B..
We almost never argue. Doesn't mean we're perfect. Doesn't mean we don't disagree. Doesn't mean we don't have frustrations, annoyances, etc. Those things happen, but not often. We aren't arguers.
Arguing becomes a problem, when that's all you do. If you never reach a solution. You can't have a discussion. When you ask if it's a problem, it almost always is.