I was thinking the same. When a person starts repeating what I said back to me, especially if it's nothing outrageous, it feels like I'm being interrogated. My response is to deny. E.g.:
> Me: Last week I went to the beach.
> Conversational adversary: You went to the beach last week?
> Me: No.
Maybe this explains why I don't have many friends.
> Me: Last week I went to the beach.
> Conversational adversary: You went to the beach last week?
> Me: No.
Maybe this explains why I don't have many friends.