Who's Sorry Now?

S2, E4: Will (Eric McCormack) and Grace (Debra Messing) discover old letters written to each other from their college days, and decide to read them together. But reminiscing about the past turns ugly when a major bombshell is revealed in one of the letters. Meanwhile, when Karen (Megan Mullally) announces she'll never fall in love again, Jack (Sean Hayes) channels Rosario - or does he? - to convince her it's never too late to find love.