Why did you even propose then!?

My 'fiancé' and I have been engaged for almost 11months now. I finally got a start on planning a few weeks ago and every time I asked for his opinion on things he'd give a nonchalant "yeah" or "whatever you want babe". Yesterday I wanted his opinion on a colour scheme and he instead tells me "I don't think I'm ready for marriage right now.. Wait, actually, I don't think I'm meant to get married." WHY THE FUCK DID YOU GET DOWN ON KNEE IN FRONT OF BOTH OF OUR FAMILIES & ASK FOR MY HAND IN MARRIAGE THEN?!! 
My blood was boiling as it was and then he says "But we can stay engaged if you want.." GAAAAAAHH!