Don’t just decide you won’t marry him over this one argument. Maybe put the marriage off to the side for now and talk on it later. You both have thinking to do. Yes he’s wrong for freaking out and yes some men are capable of not being able to control their emotions as well. In regards to you yourself think about how your entire relationship has been and has this man ever besides this situation ever seemed as though he was going to abuse you. If you think he has shown other times where he may then so be it leave him don’t hesitate. But all in all you both need to talk this through like adults. Maybe the dress was too much I hate how putting a price on anything is nuts but just explore all your options. If you ask me, goto a courthouse dressed nice, and take a nice vacation screw a dress you’ll wear 1 time. But that’s my take