In the last movie made by Boulie Landers,"Nobody has to know" a character was taking care of a dog that he did not own. The owners were on vacation and before leaving they had asked him to take care of the dog. But they have just come back and want their dog back. Hearing that the owners of the dog were back he said "I'm not giving back the dog".
Why did he not say 'I won't give him back' , what is the difference between these two versions? For me "is not giving" is only for a moment. He is not giving back the dog now but he may give it back later (in a month , a year...)
Does 'Is not giving' express future or present tense. I would say that 'is giving' expresses both tenses in this case.
I've got another question, should I write "asked" instead of "had asked" .I think 'had asked' is better but "before" indicates the order of the actions so past simple could be good too.