<P> Phyllis Lapin - Vance (Phyllis Smith) takes over the Party Planning Committee by blackmailing Angela with her knowledge of Angela and Dwight's secret affair . After Angela shoots down all of Andy's wedding ideas, she warms up to him until he tells her that he booked his a cappella band to play at their wedding . </P> <P> Toby Flenderson (Paul Lieberstein) is briefly seen in a Costa Rican hospital due to a neck injury while zip - lining . </P> <P> In the 18--49 demographic, "Weight Loss" earned a 4.9 / 11 ratings share . The episode was watched by 9.1 million viewers . </P> <P> The episode received very positive reviews from television critics, with praise mainly focusing on the episode's balance between comedy and character - driven moments, especially Jim's proposal to Pam . This scene ranked number 2 in phillyBurbs. com's top ten moments from the fifth season of The Office . Dwight and Angela carrying on their affair in the hidden corner of the warehouse during business hours ranked number 7 on that list . Writer Jen Weilgus described Dwight's line, "We done good in there, Half Pint," as the best quote of the season . Ryan's return as a temp in this episode, tied with his second return appearance in the episode "Dream Team", ranked number 5 in the list . Travis Fickett of IGN gave the episode a 9.2 of 10, indicating that it was "amazing". He wrote, "It's another terrific mix of character and comedy that is perfectly balanced," concluding that "The Office remains one of the funniest, best written, best performed and one the best shows of TV . Period ." Nathan Rabin, writing for The A.V. Club, graded the episode an "A -", giving particular praise to the development of the romance between Pam and Jim . "It was an episode full of big laughs and neat little character moments, as well as a number of gags rooted in camera placement . Ah, but I'm leaving out the big moment, that glorious milestone where years and years of flirtation, meaningful glances and missed chances finally paid off in a surprisingly satisfying, genuinely surprising beauty of a scene where Jim proposed to Pam outside a truck stop in the pouring rain ." </P>

What episode is when jim proposes to pam