AITAH for cancelling my friends flight tickets to get back at her?

So a little background information before I start I’m a 27 year old women, I have a best friend who’s 32 F, and Boyfriend who’s 50.So about 6 months ago me and my bestie were planning a trip to Mexico in August.We decided on the the date August 11th 2 days ago but I cancelled her ticket.Here’s why so about a week ago I found out that my best friend of 20 YEARS was sleeping with my boyfriend of 7 years.So I decided to refund her ticket without her knowing because I purchased the tickets.Then the big day arrived I sent her fake tickets and soon enough it was boarding time they called our cabin.When she went to scan her ticket the flight attendant said it was invalid my friend got very confusing and asked me what happened to her ticket. I just laughed scanned my ticket and went on the plane leaving her to be embarrassed in front of the whole airport.When I got to Mexico I broke up with my boyfriend via text now I’m in Mexico living my best life while she still at home was I wrong?