10 Worst Things The Friends Gang Have Ever Done To Each Other
7. Joey Dated Rachel
Throughout the relationships of the six friends, just about every one has had some romantic interaction with the others, with the exception of Ross and Monica of course. Joey and Phoebe have always had an unspoken connection, he tried to seduce Monica when he first moved in with Chandler, and finally in season 10 he and Rachel became a item, much to the chagrin of Ross.
While there is nothing technically wrong with Joey and Rachel dating, as they are two single, consenting adults, for literally the last ten years, Joey has known how obsessed Ross has been with Rachel.
The two did try to tell Ross about their relationship and make sure he was okay with it, but both chickened out when presented with the chance. After Ross walked in on the two of them kissing and pretended he was okay, it was clear to anyone with eyes that he wasn't.
Though they only dated for a week, they didn't consider the feelings of one of their best friends who they knew was struggling to come to terms with it.