We are up through 4x18 now, the Robin Hood centric and Marilena reveal, and it was no less painful the second time. The show finally surprised my daughter. She had no idea it was coming and was making a horrified face through the entire last half of the episode.
There was a lot of talk at the time about whether or not Zelena might have slipped Robin some of that elixir to get him to change his feelings so quickly. She had said just before to Rumple that she couldn't win his heart. I think the show wanted us to believe that talk with Rumple changed him, but I don't see it. I know he loved the real Marian in the past, but he told Gold she was like a stranger now. I'm keeping the headcanon that she kept some of the elixir back before giving it to Rumple and used it on Robin. Nothing else makes sense to me.
