What do you think about me airing out an abuser's dirty laundry so their partner could see it?
Can you tell me what the abuse was?
He was taunting and making fun of her.
Abusive relationships are bad, but you putting someone personal life out in the open is interference. Don't impose on this couples relationship until you are asked for your help.
Why not? It is her fault that she's with this loser.
By airing out what is going on, you may be embarrassing her as well as him, and that will be even more hurtful for her. It's best to not get involved unless you are asked for help.