willing to communicate with him.
you communicate with your dog in a lot of different ways. you're not afraid to tell your dog your secrets (don't lie, you know you do it.), or when it has done something wrong, or how much you love it.
your guy should be someone you can talk to about everything. you can share intimate things with him without feeling afraid to let him in, and you should be willing to remind him on a consistent basis that he's wonderful.
if he's hurt you, you should feel secure in letting him know because you know he's willing to talk it out and apologize. just like you forgive your 