Could do with some advice. Been with partner for 6 years we live together I'm 53, he is 51. I have adult children and so does he (his girls are 22 and 19). We have had a great life, however it all started when he was scrolling facebook and in his glasses I saw some big chested ladies. We both have each others passwords for phones etc, so I logged into his facebook hit search bar and lots of women were in search bar (hundreds), went into his video history and saw he was watching hundreds of pretty women. I confronted him he said he'd stop. A few weeks later something didn't sit right so I logged on again and he was also on looking at the same things and then deleting them, so I blew up. I said he could look at them but don't wipe them as I want transparency (been cheated on twice).
We went to Amsterdam last week and he was drunk and stoned and as we were sat at a table in a bar a hot woman walked in and he wolf whistled her under his breath, looked at me, two seconds later wolf whistled me. He doesn't remember this.
So this week as something still isn't sitting right I logged into his phone provider to see the history of calls he makes and I've found out that he has been communicating with his ex parter of 21 years nearly every week day (never on a weekend when I'm not at work), sometimes for 30 minutes a day. He is wiping the calls on his phone as I never see her name. Between me, his ex and his kids, he calls his ex the most by far. He even called her once on a Saturday when I went to the gym, waited until I'd gone took the phone outside sat in his car (obviously so he could see if I'd come back). I haven't looked at calls received, but obviously she will be calling him too. Also in his recent locations I checked a few dates and he has been going round to their house (when their kids are at work, she works from home) in the afternoon sometimes for hours at a time.
When we got together I told him that I would meet his ex and kids and introduce myself to see if they had any questions and hope that everything went smoothly as even though I've been cheated on I still am amicable to my ex's for the sake of my kids. I've only met his kids a handful of times in 6 years and they have only recently been to our house once.
I obviously still love him, but where do I go from here. I haven't confronted him about his ex yet, but I know that is not only a breach of trust, secrecy and possible emotional affair maybe even a physical one. I don't know what to do, any advice for me please.