Morgan interrupts Alexis and Julian's romantic dinner to reveal that Ava has been giving information about Julian's operation to Sonny. Julian suspected as much but wonders why Morgan is giving him this information. Morgan reveals to Julian and Alexis that Ava had cheated on him but does not reveal that it was with Sonny.
In case you missed it, Sonny slept with Ava at AJ's funeral. Morgan walked in after and was furious. Here is the scene that made us all cringe.