i've been in this situation with a wife years ago. this is a tricky situation . in my case , she made the customers feel very uncomfortable and tense from similar remarks. the owner had a choice , to keep her as customer and let me go. but since i was making him a fortune he banned her from the club as a trouble maker. she had a history of fighting , being loud and causing trouble. simple remarks she is making can escalate.
i stayed professional and treated her with respect, but she was determined to make it hard to play as the more she had to drink, the worse it got.. this happens in the bar business from time to time and with customers . to me its up to the owner. she needs to understand that she is welcomed by you as a entertainer and the club BUT she needs to also respect the business and your stage. hopefully this will die down in time as you two move on. good luck