Mine dropped me like a hot potato after sixteen years because I became sick. I wouldn't take her back, not even if they paid me. I'm much happier now.
Yeah... mine couldn't keep her legs closed when I was in Afghanistan. But if I am completely honest, the marriage was doomed after my kids were born, and that was just an excuse to get out of a situation because to do otherwise would have doomed my children to being nut cases as well.
She was just a terrible mom, which is something that you cannot predict until you actually have children. That is when ALL her trauma from her childhood comes to the surface. I actually feel sorry for my ex... she honestly cannot help the way she is, she was raised by a crazy @ss b1tch, and was sexually abused by relatives.
I cannot say this enough... the biggest indicator that you will have a problem with a woman is how she was raised. If she is from a difunctional background, unless she has had a LOT of mental health treatment, she is going to be a mess. I convinced myself that she was different from her family... she wasn't. I should have run screaming the first time I met her parents and crazy siblings.
In your case... this is a lot more common than you might think. I know MANY couples who split when the man found himself sick or otherwise incapacitated. Mostly from friends I served with in Army who came back wounded from combat. Our own government re-enforces this since your spouse is ENTITLED to half your military retirement if she is married to you 10 years while in service.... no matter the reason the marriage ended. I only know one friend of mine, who actually lost one of his legs who is still in a strong marriage. Many others who suffer from lingering PTSD...
It is actually an exceptional woman TODAY (mostly because society no longer holds women accountable for this) that will really remain loyal 'til death do you part'. After WWII any woman that left her badly wounded husband returning from war would have been treated with great distain. That no longer happens... the truth of NOW is the human race is devolving to our base nature of how we evolved. In our tribal and clan pre-history, if a woman was with a man that could no longer provide and defend her, she was dead. It is survival instinct. This is why women ALWAYS have back-up plans. It gives her the illusion of having a safety net... if she has some male orbiter giving her attention she feels a lot more comfortable. She might not actually cheat, but these kinds of situations do provide assurance.
It is a function of human sentience.
If as a man you are not meeting her needs (whatever that might be based on her upbringing and values) she is gone without ramifications. There is no societal accountability, because 'society' is online... it's the entire fvcking world! With 3 billion men, she will find many that will give her attention and assurance.
Having said that there isn't a fvcking thing that can be done about this. As a man. looking for a relationship, you have to be very careful what women you let into your life, you have to evaluate everything rationally and not let your emotions run your life. Pick wisely, then BUST YOUR @SS being the very best version of yourself. LOL!!! But even that doesn't guarantee success because the women has to believe she can not do any better than the man she is with.... so ultimately it isn't anything the man can do and there is no control.
The man is on his own... even other men are not allies... they are competition. Given the right set of circumstances one of your friends will bang you chick if given the opportunity.... and if that happens... well you are raising someone else's kid.