Should I warn stbx new gf?

[Vintagegirl1]

Stbx and I seperated just over a year ago. He was emotionally and financially abusive and on three occasions mildly physically abusive (pushing, grabbing me by the throat). He is still trying to control me through our finances and the kids and I have been getting support from women's aid to try and be able to support myself. I found out a couple of weeks ago that he is seeing someone and I am very taken aback by how much it has effected me.
Part of me is pissed off as he basically moped about for a year saying he wanted us to try again, he is now trying to rush the financial decisions he has avoided for a year as it now suits him. He only takes kids for 2 over nights a month as he is staying with his parents and that's all they will allow so I am unable to start any meaningful relationship of ky own as I always have dcs.
I really want to warn his new gf what he is really like. I truly believe he actually hates women (did I mention used prostitutes in past but said nothing happened lol) but if I say anything I'm going to look like a spiteful loon aren't I?

Mentally not physically a lot of this was due to his passed and childhood not actually aimed on me because I done something, he's just majorly insecure and he used to have a substance issue which he has done rehab for the substance was the main cause of the insecurities

He was put in a dv course and has done anger management which is still going on now
Now he is clean he is back to the old him.

Weather me and him work or not time will only tell I've still got to face the fact this other women is now pregnant and claiming to be having his baby

Warn her once then drop it. Sounds like its a good think he only has child contact occasionally. Your better of alone xx

TBH I'd tell her. She won't believe you and you will be called names but if he was violent with you, he'll be violent with her and I wouldn't want not warning her about that on my conscience. I'd just warn her once though and stay out of it after that.

She won't believe you and you will look like the bitter, crazy ex. Leave well alone in the knowledge that you managed to get away. The truth will out.

I think you should warn her. She will believe him of course, but when he starts doing it to her then there will be a little doubt in the back of her mind that he's done this before and maybe it's him, not her. I would like to know if it was me.

I had a similar situation last year and I did contact the new woman. But my message I sent didn't contain anything about him, I just said I'm Rockabilly, you've possibly been told about me. I'm contacting you not to destroy your relationship but if there have been any red flags, anything you've questioned you can contact me in confidence
That was it, and she did contact me because she had concerns.