help!

My fiancé and I decided we were going to elope on the 9th of December, we recently came into a little bit of Money and he promised when we got the cash we would get married, we received the money today and he keeps coming up with excuses, and keeps having a go at me for everything, I think he doesn't want to marry me and he's pulling at strings to get me to call it off because he doesn't seem excited at all, what should I do????