Awkward Conversation with a Stranger

I was making my infamous spaghetti and vegetarian meat balls when I realized I was out of olive oil. One of the many wonderful things about NYC is the bodega. Populating nearly every street corner, they have everything from olive oil, to deli sandwiches, to beer. I encountered someone purchasing beer.

Drunk Guy: (seeing we're both in the tiny aisle he's trying to leave) Oh no. 
Me: It's ok, go through. (stepping back to give him passing room)
Drunk Guy: Are you a dog lover?
Me: Am I a dog lover?
Drunk Guy: I'm sorry. I'm sorry! You're too pretty to deserve that! Forget I said anything.
Me: (confused gets in line behind him to pay)
Drunk Guy: No, you go ahead of me, I'm just a drunk guy, ignore me. I'm sorry!
Me: (paying the girl at the counter)
Drunk Guy: I've been drinking all day. I'm sorry. You're too pretty for that. I'm sorry!


I'm really confused. Am I out of the loop, or is dog lover some type of slang? Maybe I don't want to know...