We know Ben was going through an "I Just Burned Down a School and Might Be a Pyromaniac" life crisis, but really? These two have been best friends forever, and more importantly Alice used to date their mutual bestie, Henry. Talk about a betrayal!
To be fair, Henry's expressed zero interest in getting back together with Alice, so it's not like Ben slept with the woman of his dreams. In fact, maybe this is a good thing! After all, Ben has been holding a grudge against Henry for sleeping with Adrian, and now they're even!
Then again, we have a feeling Henry won't be pleased that his two best friends are knocking sexy boots. Way to embrace the concept of sloppy seconds, Benny From The Block.