Perhaps you would consider couples counseling; a therapist could help him understand that you don't process things the way he does,and you need time, etc..... If he refuses to hear you when you explain your feelings, etc...you will always be in conflict. Everytime we are under stress, the body releases cortisol, and cortisol damages the immune system.....so conflict is also physically dangerous to our health.

When you feel he is overwhelming you, you can tell him that you need time and will talk about it when YOU feel you can, and if he continues to badger you, walk into another room, or outside. Keep your dreams and desires; sometimes that is all we have, and they are necessary in living; perhaps keep a journal that no one will see but you.