Well for one it means he doesn't know the basic difference between you're and your.
For two it means he's still drinking
For three it means you're a hell of a lot better without out him!
Lastly it means you have laid down the law and now need to follow through on the NC. Addict like to think they have control/power over you, prove to him that he doesn't.
Stay strong, sounds like you took a big step today.