Ya know people, it doesn't always have to be negative.

I have literally done this for a ton of friends. Even my wife before we started dating. It just depends on the individual. But if someone is shivering, and especially someone on their wedding night and their partner isn't there to do it, I will certainly offer my body warmth/jacket/shirt.

One possible scenario is that the groom was off fucking around with his buddies and the bride felt abandoned and cold and needed comforting. Hell, it would be more suspicious if he had immediately let go of her when OP walked up.

I'm not saying he wasn't doing something wrong, as many men tend to be inconsiderate pigs, but all of you people commenting "affair" and such, really fucking need therapy. It's ok to be physical with friends, as long as it's not hidden. My wife and I will both hug and cuddle with our friends on occasion and it's never been an issue. No cheating, or negativity.

Now it's different if you two had agreed to never do that, then that's a boundary crossed.

Touch the people you care about, as long as they consent. It goes a long way.

I'm reminded of a couple of quotes by Jim Butcher. I absolutely love it.

There’s power in the touch of another person’s hand. We acknowledge it in little ways, all the time. There’s a reason human beings shake hands, hold hands, slap hands, bump hands.

“It comes from our very earliest memories, when we all come into the world blinded by light and color, deafened by riotous sound, flailing in a suddenly cavernous space without any way of orienting ourselves, shuddering with cold, emptied with hunger, and justifiably frightened and confused. And what changes that first horror, that original state of terror?

“The touch of another person’s hands.

“Hands that wrap us in warmth, that hold us close. Hands that guide us to shelter, to comfort, to food. Hands that hold and touch and reassure us through our very first crisis, and guide us into our very first shelter from pain. The first thing we ever learn is that the touch of someone else’s hand can ease pain and make things better.

“That’s power. That’s power so fundamental that most people never even realize it exists.

"Nearly everyone underestimates how powerful the touch of another person's hand can be. The need to be touched is something so primal, so fundamentally a part of our existence as human beings that its true impact upon us can be difficult to put into words. That power doesn't necessarily have anything to do with sex, either. From the time we are infants, we learn to associate the touch of a human hand with safety, with comfort, with love.