Losing to much higher rating has them friendly, beating them causes rudeness, hypocrisy?

Same as title.

Why is it that seemingly respected and well mannered individuals decide to become complete sore losers when they lose to a player they perceive to be "beneath them". 

I played 2 games against someone 1400-1500. I've been near 1400 in every time control so its nothing too crazy, even though I'm currently ranked near 950-1200 in most controls through a wide range of openings, many which are certainly not the best, but playable.

When I lost, they were kind and respectful, even wishing me happy holidays. I responded being just as kind and respectful.

However, when they lose, all of a sudden they decide to block any communication become extremely disrespectful, with no provocation. I would have said the same thing I said when I lost, along the lines of "gg, was cool to play you, happy thanksgiving".

It's just so frustrating when people put on a fake face and act respectful when they win, but absolutely 180 into being disrespectful and unkind upon losing. 

People just don't like losing and especially not at things they invest a lot of time and effort into working on. Chess is no different than other things in that the "favorite" doesn't always win. That is part of the game, part of variance and part of the improvement process. Should people become poor sports after they lose? No! Of course not. Does this mean everyone has the maturity to recognize this? Not necessarily. 

I try to be friendly regardless of the game outcome, but then again, perhaps this is more of a friendly personality than anything to do with chess as a game.

To be fair, losing to a lower rated player, in a rated game, can be frustrating. It can be a hit to your ego, and a loss of something you worked hard for.

The other day I played a rapid game with a player almost 400-500 points lower than me (If I lose, I think I'm losing like 30+ points of rating!). He's a strong player, definitely should be a few hundred points higher but does not play often enough. Anyhow, the game is no increment, they make a few mistakes in my last 30 seconds or so, and I end up checkmating with less than 2 seconds on my clock. 

Now even if I had lost the game I would not stoop to such a level of being toxic in chat or blocking or anything. But the loss would be felt harder, in terms of actual online rating and mental hit. I was this persons level a year ago, shouldn't I be 10-20x stronger than that old me?

Sorry this person was rude to you. We should all strive to be respectful, this is a game, and our love for Chess should supersede dumb temporary emotions. 

It's because they are patronising you by pretending to be nice when they win and it's easy to be magnanimous in victory. A good indication of someone's true character is how they treat others under adverse conditions.

I recommend disabling comments.

For people like me, chess is the one of the few things that is my hobby. Losing to someone who is lower rated than me hurts but I won't spread the negativity. I suffer in silence.

Disable chat. Dont talk to people. Problem sorted.

I just get pissed off at myself if it should have been something I'd seen, and not just against lower rated players. But I also get pissed off at chess.com because it's cost me a few games where I try to move a piece and it moves one square. But I'm never toxic.

I'm never annoyed at my opponent,the only person your really competing with is improving yourself

One can feel really bad, but angry at your opponent? For doing the same you were trying to do to him/her?

I admit that sometimes, my rating slides down a lot...and I think of this duck...and then I sort of feel a bit better. Maybe it is too relatable xD

Was the duck okay tho, does that happen often to them? lmao

This doesn't happen often because they typically stay away from waterfalls and also because ducks can fly. I'm not sure what this one was doing, or maybe it just likes the ride. Either way, I'm sure it will be fine xD

They think they're supposed to win against lower-rated players, so losing feels humiliating.