It actually is all about he kids actually.
You can date whatever psycho you like, as can he, but the ones that lose the most are thr dc. You have to protect them from a fledgling relationship and the confusion it brings when and if it goes wrong.
You're saying you love his kids, but you have no idea who they are either. They don't know you and are probably still on acquaintance level, where they behave properly in front of you.
If and when things get more serious between this bloke and you, that may change, especially as you're elbowing your way to 'Mummy' status.
A lovely child on week 4 can turn into someone entirely different at month 4.
You shouldn't be mixing your new boyf, a bloke you met on the Internet with your children this soon.
If my ex was doing this with my ds, i'd withdraw contact immediately.
It takes on average 2 years for an abusive bloke to make his presence felt, your ex was controlling, i'm willing to bet that you've done FA in looking to heal yourself after that, so will still be putting out the same message beacons to potential bad men, you don't have any boundaries, are overly trusting of strangers, and your children are ar huge risk of harm. As are you.
Of course I can't be sure of this, as I don't know him. But then again, neither do you.
I hope he does dump you, I really do, and then perhaps you will stop and think a bit about how your children are worth more to you than your next squeeze.
I'm not bitching at you. You are being irresponsible here, and you will come a cropper.