Tigerlily, I was in your shoes once(almost) and in near-desperation brought a new boyfriend to my sister's wedding. Ug. I couldn't enjoy myself at all, and in the end felt rather selfish in my choice. If your mother continues on this line, just gently remind her that 1.) It's your BROTHER'S special day, and it should be about HIM, not you (it really should), and 2.) That weddings are a WONDERFUL place to meet men, which you couldn't do if you brought a date, now...could you?