Seriously, this is the weirdest thing to have happen to you. As a man, you will constantly experience this - over and over and over. For a time everything will be running swimmingly, then all of a sudden - *mindfuck* and the lot blows up in your face.
It's like she has a one-way trembler-switch in her mind. Kick it hard on this side and nothing happens, touch a feather to that side and *BOOOOOM* and now you're for it, fuck you very much you piece of shit bastard man.
I thought that the dating pool was bad back when I got married. These days, I can assure you, it is vastly worse. Seriously bad poison.
Around Christmas last year, a relationship that started pleasantly suddenly went kaboom in my face. That was a grade-A nutjob, I've not seen anyone fuck up a beginning relationship so damn fast: it was 2 weeks in, 1/2 a day to kill stone-dead. My only self-defence was to utterly ignore her and not go to the places where I knew that she hangs out.
Recently another one just suddenly started going strange in the head: only 1 month in and weirdness. All I can do is ignore her. It's done, gone, fucked.
After much thought, I have come to a simple realisation that I wish to reassure my fellow-men with: it is not you. There is nothing wrong with you. It is THEM.
They are mentally fucked up basket-cases.
The older they are, the more mentally fucked up basket-cases they are.
Twisted, isn't it. Women are so fucked up in the head that it is guaranteed that you will run into strife with them. And this is considered to be a part of the "feminine mystique" that men will "never get". Yep, there's a reason for that: our minds are not as fucked-up as theirs are. To be able to comprehend their mental processes, we'd have to be just as fucked up as they are.
That does not bode well, eh? Anyone fucked-up enough to understand women would be nuts in just the same manner. No wonder women deride men who claim to understand them: they know that said man is either lying or must be just as mad as they are. Neither is attractive to them.
Good news though: you can compensate for this madness.
The first thing you have to realise is that there is a natural expiry-date for any relationship. Get that deeply in your heart and guts. It will expire, the woman will self-destruct, and you have no control over it.
The second thing you have to realise is that it's nothing personal. Despite what she says, no matter how painful (and she does her best to make it painful) she doesn't truly hate your guts etc etc. That's just her madness talking. You have no control over it.
Once you have those two things firmly in mind - once you know them deep in your belly, to the point that it doesn't bother you any more - you can set things up so that the detonation doesn't affect your life. When she self-destructs, you keep on keeping on, and find yourself another woman.
Yes, she will self-destruct too. It's built-in.
Until she does you are entitled to enjoy her. Have a ball, enjoy fucking, tickle the shit out of each other, have walks, pillow fights, etc. Just make utterly certain that she cannot affect your life in any way: because she doesn't have the right to do that to you when she self-destructs. She's welcome to fuck up her own life, not yours.
Maybe, if you are exceptionally lucky, you might find one who doesn't self-destruct in a short time. Enjoy her while you may, yet never trust that she won't also go mad and destroy things.
Remember: the longer-term ones have a tendency to self-destruct in the form of divorce/frivorce.