[Vigilanteman]

There might be something to this theory. At our wedding, my wife and I gently fed each other the cake with a plastic fork. The pictures were so boring that they didn't even make it into our wedding album.

But we celebrated our 30th anniversary in March with our children and grandkids.

[ImaGraftedBranch]

I was on a cruise ship, and the captain brought us the wedding cake to our table. When it came time to feed each other the cake, I started to smush it in my bride’s face gently. She was totally unaware of the custom, and was very upset that I was doing that, so she REALLY smushed hers in mine, with a LOT of force.
It wasn’t funny until everyone told her about the custom.

That was 21 years ago. Groom and Bride doing just fine.

If this was the standard, we are an outlier.

[stevio]

We got booed for our boring wedding cake feeding. Just celebrated our 18th anniversary.

[LibertarianLiz]

My late mother-in-law was allergic to eggs; so, at our (very) small wedding we had the dinner at a restaurant we all liked and they had a huge ice cream sundae on the dessert menu that served a lot of people. We ordered that, so my mother-in-law could have dessert; and, my late father was also very pleased as ice cream was always a welcome dessert for him.

When my eldest brother married, they had a cake and there are several photos of the moment when they "fed" each other a piece of cake. My sister-in-law took a piece, which ended up being almost totally frosting. My brother got a photo of himself with a mouthful of frosting, weighing his piece of cake with a look on his face that was priceless. He did NOT, however, shove the cake in her face. They were laughing and he fed her, her piece of cake normally.

They had their ups and downs; but, they were married for the rest of their lives. Unfortunately, they were both killed in an auto accident some years ago.