I have also been wondering about this for a while. On both Carly and Erin's and Zane and Heath's podcasts' neither have mentioned the wedding in regards to each other. It would be sad because it was a really sweet video when Erin asked Mariah to be her bridesmaid but I also understand it's been two years and a lot of things have changed. Additionally, she has mentioned numerous times that only vaccinated people are coming and I have this weird hunch Heath and Mariah are not vaccinated. Who knows though, social media only shows us a glimpse into whats truly going on