You are doing great.
The sad truth which is evidenced on so many MN threads over the years is that so many men are far more concerned and loyalty driven by their ex than new partner.
This plays out both financially and being more concerned about their not being inconvenienced, their spare time, their not being imposed up.
It often plays out that the solvent house owning second partner is no more than free skivvy aupair to his children whilst their mother is able to enjoy her child free time in peace undisturbed.
The mother cannot be questioned for having her boundaries, but it is the naive second partner who picks up the endless slack for these lazy men by providing housing, childcare and often funding it.
Such a poor deal.
Be glad you didn't have a child with him.
You can fully end contact.
They often lock in a child just to be sure, but are usually completely disinterested in this child and are largely uninvolved.
I don't believe he will give up yet.
The reality of the inconvenience of your ending things will increasingly be hitting him.
Stay strong. You have got this.
Please gather his stuff together so he can't drag out pick up.