I have just come on to say exactly the same thing.
@Anoniam you just can't catch a break in your life, can you! You're being mentally and spiritually tortured by your partner, and when you're not being manipulated and gaslit by him, you're torturing yourself. No wonder you are feeling sick, and feel absolutely helpless, there is absolutely not one chink of joy or hope in your life, and that must feel desperately sad.
Your nerves must be permanently on edge waiting for any minor incident to trigger him and you can't address anything that concerns you as that is only going to trigger him further. What a vicious circle.
Like others have said, I have absolutely no idea what you think you're going to achieve by confronting him, as you already know the outcome and you're willing to put up with it?
If you were going to confront him and in your mind you thought, "This is it - if he says its all in my head, I'm going to ask for his phone, and if he wont show me his phone, I'm telling him its over" and you meant it, then go for it.
But I suspect, you're working yourself up into this awful state of mental torture > then you're going to confront him > he's going to deny it > then he's going to have his turn to mentally torture you > then you're going to work yourself up into this awful state of mental torture...
...and you've achieved nothing but days of mentally tormenting yourself, winding him up and you're back to where you started on this hellish ride, waiting for it all to start again for the next trigger event.
It might not be this event or this occasion, but please take the time to contemplate when you're ready to get of this merry-go-round of hell, as nothing will change, unless you change it.