The photo included my boyfriend and his then-girlfriend. Their breakup was very hard on him, which everyone knows.

Dear Miss Manners: A friend of my boyfriend posted a years-old photo of a bunch of their friends, and she tagged one person as a way of saying “happy birthday” to them.

On Friday, Paul Skenes posted an Instagram story for his girlfriend, Olivia Dunne, in celebration of Valentine’s Day. He shared a picture of Dunne along with a heart emoji and the caption: ...