Feeling crazy after a small fight

I had a fight with my BF last night, nothing big, and it's changed how I feel SO MUCH. We live together, so when I woke up and saw him laying next to me I immediately knew I had to make plans out of the house. I left and wasted hours at the mall, met up with friends, and finally decided to come home. Normally I only do this after a big fight. And normally it works -- I'll be over whatever mood I was in. But this time I came home and was still pissed.

I don't want to talk to him, I don't want him to touch me, I don't want to be in the same room as him, and idk why I'm being like this when literally 24hrs ago he could've proposed and I'd have said yes.

My period isn't due for two more weeks so I can't even blame this on hormones. He hasn't said it but I know he thinks I'm overreacting -- and I agree with him. But I can't even be around him without my heart pounding with anger.

This can't be normal.