Can you be too honest?

I think that I could easily say that I am a sucker for being honest. I am possibly too honest with my feelings too often. I sometimes wonder if its too much for a man to hear a woman be as open and honest as I can be with how I feel? Can you be too honest? I struggle with this. If in this world we can't be completely honest with those we love....what and where does that leave us? If here on this earth we can't open ourselves up to those we trust and leave our hearts exposed, should we be in a relationship at all? But can you be too honest? Can you give to much of your heart? I wonder about this, I have wondered about this.....maybe I will always wonder.