@mightilypissedoff
It's fine you messaged the (ex) friend. But now leave it there.
You need to focus your energy on leaving.
I absolutely relate to your situation. My exH was exactly the same - charming, warm, easygoing. Everyone loved him. When I was in dire straits as he was so abusive to me, I couldn't tell anyone. For years. I just knew they wouldn't believe me.
I believed myself to be 'difficult' - mainly because he created this fiction & I believed it 😔 but also because my own family weren't very nice to me & treated me quite badly, and when I stood up to them, that got labelled 'difficult'.
(In reality, I may have been somewhat immature & overly emotional, something I've managed better with age, but I was not difficult. I was just in a dynamic of being cast as such in order that they could ignore my feelings).
Of course, that's how men like this trap is - they appear so lovely, we & other around us fall for that & their abuse can hide in plain sight.
My exH used to often make me feel really shit, using subtle put downs or acting disrespectfully to me around others, in the guise of 'fun'. (I remember a very good friend's wedding, we'd had our 2nd baby who was about 7 weeks old so B&G were ok with them coming). He got obnoxiously drunk, I obviously wasn't drinking as baby + BF. I didn't mind the drinking bit, but he spent the evening laughing at me in a really horrible way; and of course being so drunk could take no care of the baby so I had to miss most of my DF's reception. Of course when I tried to say anything to another friend the next day, I could see she thought I was being ridiculous about my H just having a few drinks.
I am 9 years post-separation, and only finally nearly at divorce stage. He made it a living hell. Still is. Like you, I tried to hang on for our v small DC, until I realised it was really unhealthy.
I was terrified of what he'd try. He's tried it all. The DC now want nothing to do with him as a result of how he's treated them & let them down. He's now pursuing me in court alleging parental alienation. (Kids now 15, 13, 11 & have phones, are contactable, they can have contact with him anytime they he wants but they don't want it)
However, every day no matter how hard it is, I thank God I ended it. I have had a lot of therapy, recognise the abuse, and am getting stronger.
I worried too re contact / custody as he's so rubbish. But in reality, he didn't want them. I suspect yours might be similar - all talk.
As huge as it seems, I promise you'll be able to deal with what comes 💐