Not actually in the industry but i have helped out a friend with a few weddings. Two of the weddings i could just tell they weren't going to make it. The first wedding the bride and groom hardly talked the entire wedding. It was like they had nothing in common. And then later the groom pretty much f@#ks off half way through and went home because i quote "he was tired". So he just left his bride having to take pictures with the wedding guests on her own. He never came back that evening so she had to greet everyone off etc. Funny enough about a year later i heard they're filing for divorce.
Another time was actually last summer. Just before the wedding speeches the groom went go hang out with his friends for like half an hour leaving the bride sitting there alone and delaying the speeches. Then right after the bride and groom cut the cake he once again went to go hang out with his friends and abandoned his wife. So she was left alone having to mingle with all the guests and he made no interaction with her side of the guests. He stuck with his friends the rest of the evening. His wife basically had to go and beg him to come and take more wedding pictures. At one point in the evening he actually went for a drive with his friends for about an hour and his wife had no idea where he was. I mean i get wanting to mingle with your friends at your wedding but to not even mingle with your wife's family or friends on your wedding day seems quite rude.
BOGO ... all in the family.