Ben? Her?, Pt. 1

S2 E23: Unknown to Will (Eric McCormack), Grace (Debra Messing) has a romantic dalliance with his boss Ben (guest star Gregory Hines), but when Will finds out, she makes him promise not to interfere. At the same time, Rosario (guest star Shelley Morrison) kindly informs Jack (Sean Hayes) that she wants a divorce so she can marry Karen's (Megan Mullally) gardener; Ben and Jack compete at tap after Jack boasts about his fancy dancing, and the season ends with living arrangements taking an interesting twist for the four Manhattan friends. Part 1 of 2.