Losing's not so bad, except when you're losing from won positions. That really gets me...
Honestly, how much does it bother you to lose?

there is no such thing as losing... if you are learning.
http://mindsetonline.com/changeyourmindset/firststeps/

I HATE to lose!
Sports coaches have long recognised this truth:
Everybody loves to win, but the champions are the ones who hate to lose the most.
What an absurd statement. How does one quantify the amount somebody hates to lose?
Sheesh.
Bobby Bowden, Vince Lombardi, Jimmy Connors, Chris Evert and others have said pretty much the same thing. I was actually paraphrasing Bowden in that statement.
Connors was perhaps the most direct: "I hate to lose more than I love to win."
I remember Kasparov making a comment about Aronian seen smiling after losing a game. Kasparov was very critical saying that this is not indicative of world champion material (paraphrasing).
ALOT
but on the other hand its good to go back and learn from your mistakes, but the actual process of losing is horrible.

When I lose a good, close game I am fine and pleased. These are the types of games I like to play and learn from. When my opponent makes a really cool move or combination I am impressed and happy to have witnessed it and learned form it. When I make a huge blunder and give the game away then I am irritated - with myself.

I hate when I realise I'm losing, but look for ways to come back. At a certain point in the game however, you know that you've lost and at that point I end the game quickly by resigning. I don't see any point in prolonging the agony.

It seems that there's a correlation between players who have said they take losing hard and their ratings.

Well, I don't hate losing, but often, I sac pieces randomly and I get frustrated afterwards. But usually, I am okay with losing. However, there was a time when I had a "losing streak" and I was quite bothered by that.

Losing is a part of life, a big part of the aging process,...and losing a game of chess is nothing in comparison!

It seems that there's a correlation between players who have said they take losing hard and their ratings.
Agree,... and hating to lose a game of chess is also an expression of one's ego and pride !
Well, not that much if I tried my best. If I saw what I should have played but didn't play it then I don't feel bad; at least I was on the right track.

While I haven't played bullet games much here, I have done so extensively on another site in the past. Bullet games are not "real chess" to most players, it seems, and I'm inclined to agree.
That said, if you ever get sucked into that addictive form of the game, it becomes strangely easy to separate yourself emotionally from the outcome of the game. After all, the possibility of squeezing in another game right away is always there, and you gradually become numb to the outcome.
This isn't to say that you aren't affected by wins or losses: it's just that your time investment is small, and your emotional investment is likewise small. Playing these games by the thousands has a numbing effect that has carried over into longer time controls for me. At least this has been my experience.

It seems that there's a correlation between players who have said they take losing hard and their ratings.
Yes, it does.
I know I am not a serious chess player, so I don't really care to lose. Sometimes I play just to pass the time.
If I lose, it doesn't really threaten my career. It's just a sport to make my mind ticking. Playing chess makes me think of new ideas in life and career.
If I lose in a slow game, there is a certainty that I did not understand some position in that game. I do not react with much emotion, but I do note that I should really analyze that game.
i dont mind loseing to highly RATED PLAYERS, but player that are Lowly rated..............I dont enjoy loseing to.
There is no reason to let someone's ratings influence one's attitude about a loss. The rating may be inaccurate, in the case of a lowly rated player: the individual may be sandbagging the account; or maybe the individual just played a great game.
Erik commented:
"There is no such thing as losing... if you are learning,"
and we typically learn more from a loss than from victory.
i dont mind loseing to highly RATED PLAYERS, but player that are Lowly rated..............I dont enjoy loseing to.