Communicate.
You have to be able to sort things out by talking, no matter how tough it gets.

Be honest.
You have to be able to tell the truth. I'd rather be stabbed in the front than the back.

Admit when we're wrong.
I'll admit when I'm at fault, but you'll have to do the same.

Don't keep secrets.
No skeletons in the closet please.

Respect differences.
Differing in opinion is healthy, recognize this.

Be willing to compromise.
You have to a little to get a little, and I'll do the same.