Will & Grace - Season 4 - Eps 6: Rules Of Engagement
During an intimate moment, Nathan pops the question of marriage to Grace but she recoils simply because the situation didn't fit her childhood fantasy of a proposal. When she realizes her mistake, she returns the favor, but doesn't get the response she hoped she'd get.
About Will & Grace

Title: Will & Grace
First Air Date: 1998-09-21
Last Air Date: 2006-05-18
Status: Ended
Rating: 6.8/10 (from 499 votes)
Language: EN
Seasons: 9
Total Episodes: 194
Network: NBC
Genres: Comedy
Production Companies: NBC Studios, KoMut Entertainment, 3 Sisters Entertainment, Universal Television
Synopsis
Will Truman and Grace Adler are best friends living in New York, and when Grace's engagement falls apart, she moves in with Will. Together, along with their friends, they go through the trials of dating, sex, relationships and their careers, butting heads at times but ultimately supporting one another while exchanging plenty of witty banter along the way.
Cast

Eric McCormack
Will Truman

Debra Messing
Grace Adler

Sean Hayes
Jack McFarland

Megan Mullally
Karen Walker