There are many ways to fight. You might fight to win, to achieve something.

Or you might fight to discuss a different point of view.

If you’re not fighting for the sake of it, then it could also be possible for you to change your opinion, and the wonderful thing of this is that, well, fighting is a quite constructive thing to do.

It helps you grow if you know how to handle it correctly.
Fighting (in a verbal sense) is a nice way to discuss things.

And even if some times the tension is real, it’s important to keep in mind the reason you’re fighting and what you’re fighting for.
To compromise, to understand, to learn.

If that’s not your goal, you’re fighting only to be right, and that will ultimately lead to failure.