@arbitrarykitten, I would add:

You shall develop healthy relationships with other people. Let me be your first line of defense, but I don't have to be your only line of defense.

What I mean is that your significant other should be the first person you run to when their are problems and difficulties, but we all should still be developing healthy relationships with other people so that all of our burdens do not fall just on one person (no matter how much we love him or her).