When push comes to shove it is irrelevant what you wanted to do, what is relevant is what you did do.  You took his money, end of mate.  If you really didn't want to you wouldn't have, no matter how much he begged...  If I beg you for 4 weeks for a $1000 gift will you just give it to me?  Probably not because you really don't want to, I suspect no matter how much I beg you are extremely unlikely to gift me $1000.

Can I have a $1000, please, seriously please I am begging!!!