How can you manage your girlfriend's passive aggressive behavior if your feelings are hurt?

You can't manage someone else's behavior. Nor can you change it for them. If she says rude or hurtful comments to you, be firm. Tell her her statement was hurtful. Walk away from her. Be honest about how you feel. With this comes the reality that she may turn her anger and hostility back onto you and blame you for problems in the relationship. If she doesn't see the need to change her behavior, she will continue to act like this towards you, until you finally get fed up enough to leave her.