Sons are batangs. They will grow up to hate the step father more than charbohs even if you support them financially. Charbohs are usually more appreciative.

Which is why we always hear terms like "Papa's girl and Mama's boy". Back to the topic, if the divorced woman has a batang kia instead of a charboh kia, the batang kia would grow up to challenge the stepfather's authority and think that the stepfather is desperate and opportunistic who preyed on his mother's vulnerability. But the charboh kia would be more appreciative for having a stepfather take care of her real mother.

Did you find out from her why she divorced her husband? It would be good to know the story behind and use your best judgement. Don't always think the men are at fault. Sometimes women can be at fault too!