Paying for the marriage

Today, we received a letter from Mr.Gardiner  expaining that Wickham will marry Lydia for an income. My father willingly obliged since that will save our family face. My parents are assuming that Mr. Gardiner paid Wickham a large amount of money, my excentric mother guesses it must be at least ten thousand pounds. My father is going to have to pay him back. However, my mother is throughly pleased to have a married daughter.