My partner and I are in a healthy relationship.

Health here is not measured by the absence of arguments.

Two people sharing a kitchen, a calendar and a limited amount of money will find things to disagree about, and a couple who never does is often just a couple where one of them has stopped saying things out loud.

The better measure is repair. How long between the door closing hard and somebody coming back into the room. Whether either of you can manage a plain sorry with no clause attached to the end of it.

Long relationships are not built by avoiding every rupture. They are built by getting quick at the returning.