Patty. Getting healthy is a non-stop thing. I see your posts here whenever there is another break-up between you and her.
Which makes me wonder about when you're not here. The times things are going "well" with her.
You can't get better on a roller-coaster, coming here when it falls apart again.
They are not her kids. Right? They are just your kids.
Please whatever you do, never tell them or her again that the two of you share those kids. Not during the good times.