Okay, then she allowed you to speak to her doctor? Sorry if I misunderstood. But people here do that sometimes, come up on their devices that their loved one had PTSD and it's just. not. cool. For anyone involved.
Also, I agree with @nursenurse, you're not divorced. And you weren't divorced when you met. That spells disaster much more clearly to me than the PTSD. Have you dealt with the fact that looking elsewhere while married is selfish? Because if she does have PTSD, you're going to need to check that selfishness at the door several times over. More than you might ever possibly begin to think.
Also, I agree with @nursenurse, you're not divorced. And you weren't divorced when you met. That spells disaster much more clearly to me than the PTSD. Have you dealt with the fact that looking elsewhere while married is selfish? Because if she does have PTSD, you're going to need to check that selfishness at the door several times over. More than you might ever possibly begin to think.