She needs to start being clever, have him buy her lots of Hermes (the rarer the better, higher resale value) bags for birthdays and Christmas. Lots of social media posts abut how great he is, what wonderful thoughtful gifts, how lucky she is to receive such a gift. So then when he fucks off without marrying her she can sell the lot and set herself up in a home. All the promises in the world mean nothing, he is out knobbing anything that moves, risking the sexual health of his children's mother. She needs to start waking up to herself and protect herself and the kids. But she seems enthralled to the gangster's moll lifestyle for now. But she will learn the hard way.