Honestly, how much does it bother you to lose?

If you like chess or even love chess and you respect your opponent as someone who also likes or loves chess, and you know that you are going to lose games and win games; and if you study chess, regularly and learn to play better and better by each win or loss, shown by your rating, keeping at least a relative win/loss ratio of about 50% or better -- why spend any time feeling bad about a loss, or waste time fretting or grieving, when one could spend time (one of the most precious things in life) actually studying chess or going over the lost game to see how you lost it move by move.  I, myself, have spent a lot of time in my earlier days of chess being angry, being hard on myself, feeling vengeful, etc.  Somehow, later, I thought to myself:  This is a lot or worthless, wasted time!  I'm going to stop eating my heart out and enjoy chess . . . and life . . . more and more each day.

When I lose I have a ritual of ranting and raving and running around the table, playing and losing the game in the treehouse really hurts.

Very true. Almost every strong player I've ever met has a very robust ego.  This includes even nice guys like Svidler!

Who is Svidler !

I lose more often than I win, and get upset when I make mistakes. I learn from my errors, but I  enjoy an opponents that exploits my errors. That is when I learn and have the opportunity to develop my game because I go back and analyze it and keep a journal. I can avoid many past mistakes by reviewing my past games and look to develop weaknesses suchas opening play. In my earlier games, I would only know one opening and the first five moves. Now I concentrate on learning new lines and research positions that helps calculate outcomes. My point of views is take time to reflect and analyze your strengths and weakness build upon it, and you will see steady improvement.

If I go into the game with the goal of winning, I get upset or frustrated if I lose.

But if I go into the game with the intent of learning (say I'm practicing a new opening or a new strategy), then losing doesn't affect me emotionally at all. Ironically, losing, in those cases, is something I look forward to because it gives me something concrete to look at to figure out where I went wrong. If I win when experimenting, it's harder to see where improvements can be made.

"Show me a good loser, and I will show you a loser!"

I'd rather be the worst of the best  in a chess club, than the best of the worst in a local chess club, because in the former one has a better chance of learning from good players.  However, if I can't fathom their play, or keep up with blunders because I am not learning from my mistakes, I just as well enjoy being the best of the worst in a local chess club.

everybody is a loser sometime...even world champions...but a good loser is someone who graciously accepts the loss without any bad mouthing of the winner...and like the common saying they learn from their mistakes

Yeah like me, when I lose I cry to myself and no one gets their feelings hurt.

I don't mind losing as long as I'm losing to a good winner.

You are correct, but it is useless to explain to someone if they do not already understand the point. It is the dominant strategy and if someone is exposed to it they immediately realize how true it is. If they argue it is either because they do not understand or they want to argue. There is a quote, I cannot recall if it is from a martial arts text or a philosophical one, from asia and it reads: I know not about winning, but I know about not losing. 

I get quite frustated and can't do any work if I lose a game. I can't concentrate on anything for around an hour. But when I get up the next day, I completely forget about it.

losing is not an issue, but winning sure feels good!

Losing is quite a issue. My brother is a sore loser. (he's only a 600 some player).

Where's my grammar my Mother's been teaching me?? Losing is quite AN issue. 

I'm not bothered by losing, I'm bothered when I play bad.

I don't feel anything in particular from losing.

I totally agree, particularly when it's an internet game. There's always something you can learn from a loss.

"Losing", "Failing", "Error in judgement", "Being Incorrect", "Being wrong", all these negatives are part of life, depending on how strong our character is and our understanding and appreciation of "forever learning", things like this can only help us in striding harder to overcome what is a thorn in the backside. 

I personally do not like losing, I don't believe people set out to "lose" anything, in chess if I lose a game, its not the end of the world, its nothing to throw a tantrum over especially a blitz/bullet games in live chess. 

But of course there will be disappointment if I failed to see through a game where I had a clear advantage to end up losing on time or being naive and getting checkmated. 

Just keep playing and keep smiling!