For all Oren complains about Shane having been the one to crack and reveal that they hadn’t all ben asleep when Cassie fell, he also knows now that he would have been better to have backed up Shane’s story that they spent that night together rather than pretending to have been with Bette.

In choosing to maintain that other masquerade, the one where he was wholly faithful to Bette and had never been involved with Shane, he instead made it clear from his reaction to finding out that something went down with Bette and Cassie that night that he hadn’t been with her at all, and it ended up blowing up in all their faces.

He no longer has Bette, he also no longer has Shane, Cruz no longer buys the carefully agreed “we were all asleep” story, and Oren knows he can’t blame it all on Shane but a big part of this is on him.