Not projection. Fact.
I'm involved in a charity for DV victims. If the issues that lead someone to an abusive relationship are not addressed, they just sit there, waiting.
I know of women coming to groups 25 YEARS after the end of a DV relationship that need help resolving the issues they had.
Abusers target the vulnerable. We're made vulnerable by wanting to please people, having a poor view of ourselves, often bestowed on us by our parents, and no confidence to enforce our boundaries.
Once you've been targetted once, you will be again, until you lose the vulnerability.
If OP was talking about the new bloke and his deseire to have kids, but his uinderstanding that she might not want any more, it'd be one thing, but he's made a threat to leave unless she tries! All of this in a only year of sporadic relationship, during which he's proposed (!) 10 years of family friend really means nothing.
A normal, rational man, dating a 40+ yo woman would have to know the risk of a genuine and understandable possibility that she might not want more. He'd be ok with that, or would have never embarked on the relationship at all.
He's placing his own needs above hers, or he'll leave her.
And she's sleepwalking into it.
He's 30, OP is not. If he wants a ready-made family, all well and good, but I see unbalance here and it's unhealthy. It's setting OP to be ridiculed for lacking in fertility, no matter what he says now, and her feeling 'spent'. seeing how she already thinks her DC are in need of pity as they are fatherless, and therefore she is not enough, it suggests a poor self-image.
He should be accepting you as you are spirited, as a package, for now. Anything else in the future is a bonus, not something to scare you with. You have to see this, surely?
If he wants his own family, then dating someone over 10yrs his senior is not ideal. It's not a pop, it's biology.
I don't think this man is right for you, and I think he'd not be right for your DC.
Time will tell, but radical changes need take place before then, and lots of work on your part sprited, lots of thinking and lots of watching how he is.
I know you want the happy ending. You really do deserve one, but the foundations for that have to come from a strong you, one that knows you ARE good enough, and that your DC ARE happy, safe and that all they need is a decent parent, not pair of parents.
I don't see any of that.
I promise you, end this, work on yourself, heal the pain of the ex, shrug off the hurt and vulnerability and you WILL find a man that loves you JUST the way you are, that pitches in, that accepts and loves the DC equally, and doesn't ask for you to prove a thing to him.
I'm not here to attack or upset, I'm here to point out that you are better than this. This man is a transition, the better one is around the corner, don't settle!