So as of today I've just found out my partner is on a swinging site, his best mate is on the same one, but he is single, so I don't see an issue there, what my issue is is that my partner of almost 6years is on the site, got a single profile and created one for him and his best mate. Thanks to the best mate ice found out all this and found out a lot of secrets my partner has been hiding from me, all the chicks on his Facebook that he talks to regularly, and found out that there had been an offer of a 3sum for my partner with 2 other women, or another woman and guy( can't remember in my rage) he has lied to me after I questioned him about it making sure I kept his mate out it as well, and he couldn't be honest with me, though he seems to think i have something going on with his mate (Nothing has or will happen) I don't kmow what to do now, or how to tell him i know without dropping his mate into it and causing issues there in a friendship.

***update*****(

Well it all hit the fan that night, I couldn't contain my self any longer, I've kept somethings I found out to myself for now, we argued till about 2 in the morning, and after extensively going through my man's phone and checking everything, checked all deleted things, I found out it was the friend trying to split us up, so of course we stopped speaking to him, I still am very wary of what my man does on his phone, which he understands and continually tells me that I shouldn't worry, which of course I'm going to always worry. So I think it's onwards and upwards for me and my man, as I have control of his phone contract I have blocked all adult sites on his phone, so the only way he can get on one is using my phone or his laptop which I have stored at my parents house.