Perfect.
And this is the point in which op needs to get to.
Op needs to understand how cruel he is acting and how others recognise this, she is not being unreasonable in her conclusions.
His behaviour is nasty and so is that of his friend, the worrying thing is this now apears to be going into provocation teritory where they are actively harming her for their delight, how far can we get away with this type behaviour.
Good and evil is the bottom line, you are on the right side of this but this triangulation is very harmful for you and shows the depravity of his values and the cruelty of his denials.
I hope you have some support because he is very manipulative and you need to escape this horrible game he's exposing you to. He's got you teetering on the fear ledge, will it end, will everthing that you've known to be safe and real just disolve overnight. He's the one in charge and you feel powerless, for what it's worth it sounds to me as though he's a cake eater and this 'friendship' will fade out eventually, but the damage will be done, throughout this awaful period you have been unknowingly gaining strenghth, forced upon you by this hellish game.
Just understand you are the good one, the reasonable one, the logical one in this, regardless of any other factors but he will try to discredit you if you try to reveal his character, so keep safe if he intimidates, threatens or harms you in any physical way, call the police.
And in the future it wouldn't surprise me, even after the crap he's putting you through to expect you to love him again as though nothing has happened, again another episode of gaslighting and mental cruelty.
But love that comes too late,
Like a remorseful pardon slowly carried,
To the great sender turns a sour offence,
Crying, 'That's good that's gone.
William Shakespear.
This where you need to be, and with this awful excuse for a husband you will eventually get there.