It's a good thing Sally and Harry find friendship with each other, because their other friends are kind of lousy. We might feel bad for Marie, but it's hard to forget that she was ready to pounce on Sally's ex the second they broke up. She also poaches Sally's date, Jess, after Sally and Harry decided to go on a double date and set each other up with their friends. Harry's friend, Jess, immediately falls for Marie, instead, and Marie falls for Jess.
Marie and Jess individually get permission from Sally and Harry to date each other, but are both asked to wait a few days in order to not abruptly reject their original dates. Marie and Jess both agree to this, but instead of sticking to their promises, they share a cab immediately after making them and clearly intend to go home together.
To their credit, both Sally and Harry are happy that their friends find love with each other, but that doesn't excuse Marie and Jess for being unable to keep their word.
