Question on ethics

I have been playing in a pot limit game in Estonia on weekends since spring. Bunch of regulars are without exception very nice people. Recently a new guy has been playing and he is often rude to the dealers and to players sometimes as well.

Saturday night there was another new player, very nice lady from Finland, works as a pit boss herself, a pleasure to play with. One hand she and the rude guy are both in til the end, she is all in. She shows her hand, AK for top pair with kicker. The rude guy says that's good, then after a bit he turns over his winning hand (nines on board, he had a nine). What an a..hole. unbelievable. To pull a stunt like that in a public casino, especially to a stranger and a nice lady at that? I think in some other places he might have gone home with no teeth. She said a few things to him like "I hope you enjoyed that". Then a bit later said to him very calmly that when it's a showdown he should just show his hand and not play games like that and the guy just looked the other way and ignored her.

Should someone be barred for such behaviour? Next time I go there I plan to talk with the manager and see what he thinks. My only idea so far is that if the manager does not want to bar the guy I will exercise my right to not allow the rude guy's lady to sit behind him all night petting and kissing him. I have just been ignoring that but apparently there is a rule there that if any player objects to a full time spectator we have the option of having the spectator removed. I figure this might teach him that if he wants to be treated with consideration he should have some consideration of his own.

I would appreciate any/all thoughts on this subject as I really don't know what else to think/do. That's about the rudest behavior I have ever seen at a poker table (at least in a public casino) and I'm just stunned.