He said he could never be mad at me when I thought he was then when I asked why not he said "i just wouldn't"?

he said he could never be mad at me when i thought he was then when i asked why not he said "i just wouldn't" why would he say this? does he mean it?
He said he could never be mad at me when I thought he was then when I asked why not he said "i just wouldn't"?
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