Wife abandoned me...Now What?

[Mike.4545]

I've tried to read as much on exposure as I can. I plan to talk with her parents and sister next week. I'll talk with the understanding that I'm doing this to fight for my marriage,for the happiness of their daughter/sister, for the fact that they deserve the truth, and to discuss with them what they can do to help me fight for my marriage, and to expel the OM who is working to destroy all that we have worked for over the years.

Also just so you know, they are all very supportive of me in this already...they just don't seem to have a directive on where and how to focus their efforts especially since they don't even know what's really been going on.

After that...I'm going to go as dark as possible with the W...(not her family).

My biggest concern right now is that my wife cannot emotionally handle what she has done, and that I just found out she has been flying out to see him. I fear she will try to jump ship and push for divorce to try and escape from the painful wreck she's caused.

What can I say and do right now to prevent steps towards divorce without coming off weak and pursuing?