I match up friends, people I know. I am extremely happy when my friends get married and I would not dream in a thousand years of ever demanding a cent from them for THEIR happiness!
I’ve done the same. In fact, one time the couple actually “badgered” me (in a friendly way) until I took a gift from them; and even then I would only take something small and symbolic.
But, OTOH, if the OP is doing this as a business/service, I certainly can’t fault her for wanting to be paid.
The Wolf