It's the best decision to not uproot your life and that of your baby girls to be where he is AND for not exposing your girls to this unstable jerk. Keep this boundary. It seems that he is using you and freeloading.

And frankly, *he* is the one who has to show change (his behaviour, his location, his concrete actions), not you. In this, I would also set a firmer boundary: for him to *show* changes in his behaviour and not those empty promises otherwise, there will be a 'consequence'. It's easy to apologise promise to change and blah blah but where is the evidence?! So, unless he shows change, I would keep my distance from him.

You can't make him change if he doesn't want to - which he seems to indicate is his preference. So, what would *you* do to make your life better without an unsupportive partner? Take those steps. Reach out for community support or services, if need be.

Keeping this ongoing dynamic will only negatively impact your and your babies' mental and emotional well-being (and financial too!).