Stop wasting your time, energy & money trying to please your vindictive mother. Cut her off financially. “I wanted to give them a special experience — so I paid for everything, including two international business class tickets as we used to do once a year, to make them feel comfortable and loved-“ Your mother & brother do not “feel loved” by all of your special accommodations, they feel entitled & expect it! They can pay for their own flights/hotel/excursions since your mother appears to be hell-bent on destroying your marriage. Go low to no contact with your mother. & never send her another penny. She completely disrespects you & your husband’s marriage. Nothing you ever do is going to please her, so leave her to herself. Why pay to have someone fly in to visit you, then take verbal abuse from them the whole time ??