My fiance hit me out of nowhere :( I'm so confused. Please help me!?

Break it off immediately. You can press charges for starters, but if you do not wish to, then just break it off and dont look back. It does not matter what he does for a living, or what made him angry, short of defending himself from a physical attack, he should not have laid a hand on you to push you or anything else. He may need therapy or anger/stress management,is there any possiblity he is using drugs? You hanging around being a punching bag wont help him any. Leave him, tell him if he gets help you can reconsider the relationship later- if you feel you must. Men that hit, dont just do it once, it gradually gets worse and worse. He has an abusive personality and most likely this will continue with our with out help. GET OUT and save yourself, your future, and any hopes you have of a happy life. You can move on from him, you cant move on if your dead, or maimed.