They’ve broken their own rules plenty of times. And keep in mind, Emma had not moved on from Neal. She said she never did even when she thought he had left her during the events of Tallahassee. The only different denominator in her being able to have a semi-successful relationship with Walsh was keeping Henry. That is what made her open to it. Not that she had moved on from Neal. Because all those memories were fake. According to Emma’s own words, as soon as she saw him again in Manhattan, she knew she never moved on and never stopped loving him. And yes she was in a relationship with Walsh, but she was unsure about it all. Even when he proposed. We know Emma had one night stands and such as she said back in S1. Henry was the differentiating factor in her being able to have a longer relationship, not Neal. And besides. He was a monkey. Zelena knew what they needed to do to keep Emma on Walsh.
Keeper Nealfire's/Bae's scarf, Henry and Neal's bribery ice cream sundae, Baelfire's sword, the coconut map, and more.