Episode 107 of "Will and Grace"
s05e09 Marry Me a Little More
Title: Marry Me a Little More
Original Air Date: 11/21/2002 on NBC
Plot Outline:
After realizing that she truly loves Leo, Grace decides to do the marraige thing right with a traditional wedding with a licensed judge. Will is becoming more upset over losing his best friend... however, Grace assures him that no matter what, she will always be in his life. At the wedding, Will is chosen to give Grace away after her father throws his back out.