Loving and caring is like a knight taking off armor. You become vulnerable to the emotional wounds that people can inflict. However, I do not agree with your husband. By opening up then you are actually showing strength to me. To shut down completely may make you safe, but it will not allow you to live. To feel pain is a normal and expected part of life. We, as humans, are not guaranteed a life free of suffering.

What you need to focus on is not shutting these experiences out of your life, but rather going through them and learning from them. Learn to see it with wisdom, and not to internalize it. If you must cut that person of then do so, do not allow yourself to be abused. Also, do not put expectations on others because they will always fail you. Do not expect them not to hurt you. However, you do need to expect of yourself that if you do get hurt, then it isn't necessarily a self flaw. It certainly isn't caused by you opening up!