I think it’s fine to meet up with his ex. Just make sure that he NEVER finds out. Not now and not ever. That’s very important for her safety as well as yours.
Do NOT even think about using anything she says to justify to him why you are leaving him . So many women in your position think they have to persuade their partner that he is an abuser and get him to admit it before they can leave him.
So they collect “ evidence “
My counsellor says you are abusive.
I posted on Mn and everyone agreed with me.
I read this book and you are just like the lesson in chapter x , here read it and see that I’m right.
I met up with your ex and she says you abused her.
Collecting evidence is good, if the purpose is to convince YOURSELF a that you need to leave. Using it to persuade him that he’s wrong his pointless and dangerous.
You need to leave an abusive man in as low key and low drama way as possible . Eg
getting a job elsewhere so you have to move away
saying you think you are depressed and need time to work on yourself
going grey rock and fading him out ( easier if you are not living together )
saying vague things like “ it’s not working for me anymore” or “ I realise I’m not ready for a relationship “
It’s a really bad idea to tell him the truth. That will just trigger his need to retaliate and punish you for leaving him.
Remember that “ wife beaters “ don’t think that are wife beaters, they think they are retaliating because she did bad stuff first. Like disrespecting him, leaving the house messy, looking at another man the wrong way, undermining him with the kids, wearing the wrong kind of clothes etc, winding him up.
Thats why they justify hitting her, because she asked for it. That’s what he meant when he said he would hit back. So she says something he doesn’t like, and he hits her ,so it’s her fault . She started it .
That’s what these men tell themselves, they are not wife beaters they are good guys who had a moment where they were pushed over the edge by her totally unreasonable behaviour . Any man would have done the same. And besides they were tired after work / had a few drinks / their team lost the match so they were stressed, so it’s not their fault.