Funny story
Had a law partner file an alienation of affections case for his friend. He warned his client about these cases because they allow the defendant to dig up dirt on the plaintiff in discovery to show he or she may not have been a saint either. In this case the guy wanted to do it mainly because his wife had been blaming their divorce on him and dragging his name through the mud on social media (she was awful, one of these 5 selfies on facebook a day "look at me" types).
So after a short trial where the jury got to hear plenty on the horrible traits of the cheating wife, the jury foreman stands up and says your honor, we find for the plaintiff. However, we award no damages because we find that the ex-wife's affections have no value and the defendant has done him a great favor by taking her away.
My partner said his client was thrilled with the verdict and the look of pissed-off on his ex's face when she had to hear that was all he needed.