Husband mad I said hey back

So I went to Walmart yesterday to get some groceries for the week, I went down the soda isle to get some gingerale for my pregnant self. There was a guy in a pepsi uniform putting pepsi products on the shelf and it turned out to be an old friend from high school (never had a relationship with him), he noticed me and said “Hey, how have you been” I said “Pretty good thanks, see ya around” and continued shopping. Now my husband is pissed saying “Why did you respond? Why didn’t you ignore him and walk away?!” I’m not a rude bitch I don’t ignore people directly to their faces.

Edit- just to add what he just told me “You dont need other people, Im your best friend” now I think he’s trying to isolate me so I only rely on him.

To Jess- He did have friends but one was shot and killed and the other one passed away from cancer last year. So he doesn’t really have any left

I seriously love all the comments, you all have made my mood a whole lot better knowing I’m not crazy for not understanding why he acted this way!