I read in what you have shared in other threads that you struggle with ptsd. Unfortunately, pstd is a disorder where an individual tends to experience more emotions than they want and they desire to be able to sit and talk out their often overwhelming emotions for comfort. The problem with that is that the average person doesn't understand ptsd, that a person is emotionally sensitive and is often affected by things the average person doesn't have problems with.
Some of the ptsd symptoms can come from a history of being disrespected or treated badly for things that were never your fault, but instead the other person was dysfunctional/disordered. This makes you more susceptible to feeling hurt when your wife dismisses things that are important to you.
Other posters including myself would like you to explain more about the single men your wife talks to, who are they and how is her discussions with them happening? This way posters can have a better idea of what is challenging you so much.