I just read your other thread. This man has a long long history with bill board sized red flags everywhere. You have three very young children.
Be very very cautious. If you choose to continue this relationship keep separate houses. Join an Al-anon group!!! Maintain some physical and emotional space between the two of you so that you can maintain a health perspective as things unfold. It is very easy to get entangled and lose perspective. You have so much at stake. Due to the red flags, you want to be able to continue to objectively evaluate if this is good for you and your children and you want to have the skills o look out for yourself first no matter what, and al-anon can help you with that. Al-anon is all about *you*.