Words of advise for a dear friend of mine

I recently have been speaking to a dear friend of mine about conception and we found out we are cycle buddies. She has been trying for the past two years for her rainbow baby and this past month she recently found out that it wasn't all her. She does have PCOS (as do I, hence the best person for cycle buddy). But she has done everything she was told to do that goes along with trying to conceive (weight loss, charting, etc). 
While going through her insurance paperwork sorting out billing, she discovered her husband had gotten a vasectomy four years ago and has been lying to her this whole time. He always joked to her that it isn't me I have made babies it's my skill. (Two previous children from previous marriage). She is completely outraged and as her very close friend, I honestly don't know how to comfort her.  (She doesn't want to confront him, but I do! And told her she should too!!) 
What else could I say to her? I have said all of the things that we all go through when trying to comfort a friend, but not being in her shoes I'm sure it's in one ear and out the other. I will always be the listener that she needs but her mental health is a big concern of mine. Should I contact some medical professional? Help me help her....please. It brings me to tears to know she is hurting so bad.