Most people aren't going to respond well. In a perfect world, he wouldn't have been paying for sex outside of marriage, but he's not in that situation. Telling her will create wounds which he will need to be prepared to deal with. This isn't the first time someone has made a post like this in the past. In most cases, either the person can't break the addiction and keeps seeing escorts secretly or they eventually get caught. He's been incapable of breaking the habit behind her back. He's just going to have to think long and hard how he wants to approach that situation. It won't be rainbows and butterflies, but taking responsibility for his actions is a starting point. If he wants to pussy out of having to deal with the situation, so be it, but the conflict will only continue to multiply.