Would you stay with your husband if he got someone else pregnant?

So my brother married this girl he been with for almost 12 years right. He had another baby on her with someone else. The thing is that she holds over his head is that she getting his money and taking everything from him. he’s in the military and he’s basically been avoiding her and etc. she tells people “we all know he ain’t going anywhere”. He’s been doing everything possible to avoid her including secretly buying him another home. then she tells us that he ain’t going anywhere. It’s like she want control over everything he does especially his money

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My brother has 4 different babymamas and I don't know what to tell her. He went to prison years ago and that’s how they met. They met on penpal
Would you stay with your husband if he got someone else pregnant?
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