My wife is planning on cheating on me with a woman. We talked about a threesome with a woman years ago but she said she wasn't even remotely interested after we discussed it.

A few days ago, she let me use her phone's browser to look something up. I saw a Google search for "lesbian sex" and asked her nonchalantly about it. She said she didn't do it, but I knew she was lying and pointed out that nobody had used her phone but her. She admitted that she was looking into doing something with me and other women but wasn't sure. I told her that lying wasn't okay but told her that I'd be up for it as long as she was honest about her approach.

Well, this morning I had some time to kill and long story short, via a google search, I found my wife's e-mail connected with a lesbian dating site. It didn't bother me until I saw the following line, "My husband will not be involved".

I know that she casually browses Craigslist personals, so my first instinct was to check there to see if she had posted anything. And lo and behold, there's a posting from her under the W4W section. I confirmed that this is indeed her. Just trust me on that. At the top it said "My husband knows I'm doing this and is okay with it, and he will NOT be involved."

It goes on to describe her likes and dislikes, what she's looking for and says that she wants to "get to know" the person before doing something. "I'm looking for someone I can be attracted to physically and mentally", it goes on to say.

I do not know that she's doing this and I would be okay with it if she was searching for someone for a threesome or to spice up our sex life. But that's clearly not the intention. It looks like she's looking to do some outside experimenting herself. This is NOT okay.

We've had our issues in the past with infidelity on her end with another man, but it was dealt with and we moved on from it.

I have a few options that I'm considering:

1. I can confront her about it now, but seeing as how I don't have any more information than I do, she could lie about it to seem like she's looking for a third wheel.

2. I can let it play out and keep a close eye on the situation without saying a word about it.

3. Respond to the craigslist ad myself under an assumed identity and see what her true intentions are. I am highly against doing this, but right now I feel this would be the only way to get her real intentions out.

Obviously if she's planning on cheating for a second time, the marriage is over. We do have children, a house, and the whole nine yards. Any advice would be appreciated.

<b>EDIT 1<b> Gathered up all the information I have. Took screen shots of the posting, the profile on the website, etc. I won't bring up the fact that she browsed lesbian porn on her phone, as that's not admissable in court. I do know her e-mail password but WILL NOT be snooping in it. I won't bring myself to that level. Will post updates as they come.