That means, at least for now, Mark and Roxanne can remain friends. They have a nice friendship chemistry and might make it as a really good couple; however, it would be too soon and also make all six characters part of 3 couples which would really be Couples City.
Mark was his usual funny self. Lance was very popular. Now that he's back? Whitney is opposed to him and that's it. Except for the fact that Alex is calling Lance one of his best friends and freaking Mark out. (Mark says he's choosing to focus on the "of" -- one of his best friends.) Mark feels like he's being iced out.
So he's with Whitney on her plan to prove that Lance is scum.
They don't come up with anything (though Mark does try planting an ear in Lance's apartment). And Roxeanne asks her to just be happy for her. Which Whitney agrees to but notes that if he hurts her again, he's a dead man.
It was a really funny episode. And it was funny to see Mark on Whitney's side for two scenes. She's not really taking him seriously which is a good approach for her character. I like how they all interact so differently. You can tell care is taken with the writing of this show.
Usually Ann or Marcia write about Lily so I'll just note that Lily was hilarious this episode and let them explain why at their sites.
"Iraq snapshot" (The Common Ills):