Is my brother now screwed?

His girlfriend cheated on him once 3 years ago and he tried working it out. Supposedly she's all remorseful and has learned, hasn't cheated again, etc.

She got pregnant last year and shortly after the baby girl was born, he obviously needed take a paternity test. It's positive. He is the father. Is he now screwed?

Updates
+1 y
He was hoping it would come out negative so that way he can throw the ''I knew it, cheaters never changed, I knew it, I knew'' instead it's positive.
Updates
+1 y
He even went ahead to do a 2nd paternity test. It didn't change the result. It's positive. He is the father.
Is my brother now screwed?
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