Girls, What’s meaning when a man said “I really do like you too”?

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+1 y
I’m a foreigner.
My question is mean why he said ‘I really do like you’, not ‘l really like you’.
What’s the difference between ‘l really do like you’ and ‘l really like you’?
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+1 y
I’m so sorry. It is a terrible question.
Girls, What’s meaning when a man said “I really do like you too”?
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