I think being snapped at doesn't hurt as much when we take the time to nurture our own dreams, activities, and identity that is ours and ours alone. One reason I have been writing so much is to make sure I am listening to my own voice. Life can be rocky if we rely to much on others for our self worth. We have to nurture the voice within. I think our relationships wit others are healthier when we take time to do this. For you to feel better and for you to be able to give time to your SO--I think you must establish more time (or leave for a while) just for yourself. You need to figure out a way not to worry about him 24/7....