when your heart says you've had enough.
What you'r getting isn't worth what you'r taking.

When you feel you have lost a sense of who you are with "that someone"...
i agree with most of what people shared here..I have been happily divorced for almost 7 years...I feel that for me anyway, some relationships / marriage are too institutionilized!...(spell check..lol)..
If you can't be yourself, and or your 'partner' tries to mold you into something your not...I say: RUN...and don't look in the rear view mirror....

As soon as your not happy being in the relationship anymore.

when he doesn't care how u feel

a cheater

I agree with what pretty much everyone said here, especially the abuse, cheating and lying as the biggest reasons and the rest would follow next.

Gypsy, have to admit I had the urge to use the pillow on him while he was sleeping once, he was so drunk I would probably have gotten away with it too, but I am not that type of person. Instead I actually spent half the night trying to wake him up, I think he was actually so toxic from the alcohol he could have died, he was ice cold. (He was an extremely violent drunk.)

When the bad in your relationship starts to outweigh the good...It's enough!!!!!!!!!!!

when you would rather be at work, or at the coffee shop, or anywhere, rather than at home with your mate for a significant length of time, time to call it quits. Life is too short to be miserable for any significant part of it. Granted, we all have miserable times, but, if they just go on and on, there is a problem

When the same type of behavior keeps repeating itself regardless of the 'changes' that they say are needed are made.

When you can look at them and feel the love you have for them almost ripping your chest wide open and it's treated like nothing more than a nice thought or compliment.

When you are willing to work yourself to exhaustion to give them what they want out of life, yet there's always some 'need' of theirs that you can never seem to provide for them to their standards...

But that's just me.

well stated Ole...been there twice, at least

When I didn't see a mental picture of "us" in the future it was my sign that we are over. Eventually, everything else fell into place.

when you can say it out loud & mean it...

I agree with that davinci

When time together means a run through McDonalds drive through and then sitting in front of the t.v. on the one and only night of the month all the kids are gone! hehe!