Arbitrary reason

I know, right? My mother sat me down and was like "I have something serious to tell you about your husband (my fiance at the time)." I was scared of what she was going to say!!! Then she went on a rant about how my aunt looked into his car and noticed that he had left empty Wendy's bags. She went on to say how ungrateful he was for buying Wendy's!! Bitch is insane!! She told me to BREAK UP WITH HIM BECAUSE OF IT!!!!!
He was driving for an hour to attend college and was gone most of the day. He bought Wendy's on his break between classes. She was GENUINELY UPSET over it. I was in shock. She even confronted him about it???reddit.com
----Narcissist reasoning