I made this post a couple years ago, but it fits this thread:
When she says "Goodbye"
It breaks my heart everytime I see one of you guys post a "How do I get her back?" thread. The saddest thing is you probably didn't even do anything wrong. Let me tell you something that might help you move on. She ain't coming back. She's already made up her mind and cut the ties. It's not fair, it's not pretty, but the truth rarely is. Here's a few items that may help explain things.
Women think about their relationship 90% of the time.
Especially since we are told from the cradle that men don't understand a damn thing about love & relationships. We wonder where the relationship is going, where it is, where it was and about every possible direction it can go. She thinks about you as a potential husband, father, lover and will you dump her if she gets cancer. She'll question you IL ever second you're with her, and more so when you're not.
Women NEVER forget...never, never, ever!
You said something as a joke, she SAID she's fine with it and that should be your first warning. In "Woman-speak" the word FINE is defines like this F-furious I-inside N-never E-ending. She will be dragging crap up from thirty years ago to throw in your face now. (Does this mean walk on egg shells to prevent upsetting her? Hell no! But when she says she's "fine" with something and you suspect otherwise CALL HER ON IT. Tell her (don't ask, TELL HER): "So you're REALLY all right with this. You aren't pissed at me, and you aren't going to drag this up later. Is that right?." If she says yes, then don't tolerate her dragging up that item. She agreed she was fine with it and would move on from it.
Women don't like to hurt your feelings.
Really! We really don't like hurting you. That's why the "I think we should break up" line always hits you from out of left field. You never saw it coming, because she never mentioned two weeks ago that she was thinking about it. She didn't want to hurt your feelings. This is especially true if she thinks it wasn't your fault for the break up. (ie...she met some one else, she's having personal problems) This is also why we go to Car Shows (BORING!) and Monster Truck Rallys (LOUD and BORING) then tell you how much fun we had with a big grin!
When she says it's over, IT'S OVER.
By the time she decides it's over, it's over. She has thought up 197 reasons that you two shouldn't be together any more. She has cut the ties and made herself ready to move on. The only thing left to do is tell you. The more you hang on, stay in touch, & try to "win" her back the more fuel you give to her reasoning. The best thing you can do is kiss her on the nose and say: "Well Babe, it was fun while it lasted. Good luck!" and walk away. This doesn't mean she just didn't rip you heart out of your chest and stomp it to a greasy spot on the carpet. It just means that nothing else you can say will help the situation. Not pleading, not screaming and not threats. Don't call, don't write, don't e-mail, don't hire a 25 piece band to play her favorite song in her front yard. Walk away and let it go.
Couldn't have said it better myself.