As others have said, picking your battles is most important. It is my motto for life in general, whether one is dealing with a PTSD sufferer or anyone else. I doubt Jim and I could have stayed married as long as we have, had we argued or challenged every point on which we disagree!

I do agree though also with being short and to the point. When it comes to opinions, everyone should be allowed to voice theirs; one party having an illness should not matter. If you never challenge your ill partner's opinions, even when you believe them to be wrong, it is a form of enabling. Having an opinion and stating that opinion is not the same as constant nagging or trying to get your partner to change their minds about a matter, or at least it shouldn't be. You may still simply agree to disagree, once the opinion has been stated.