I am trying to find a video I saw on youtube about two years ago about an ex boyfriend who rides into town on a horse looking for his bride who he learned is about to get married. Everyone who sees him ride by on the horse is in sheer awe of his presence as he rides by. He has come to stop his ex girlfriend from marrying another man (someone who the bride was also having second thoughts about marrying because she was not over her ex). As the wedding ceremony is about to take place, her ex lover suddenly appears at the wedding location on horseback to claim her. There is a swimming pool separating the alter from where the bride is standing. When the ex boyfriend sees the bride about to get married, he jumps into the pool (wedding dress and all) and is joined by the would be bride. The would be groom is then abandoned at the alter and witnesses his bride ride off with her former lover.

My daughter-in-law was able to find it:
https://www.youtube.com/watch?v=1NMUDb3Ewhs