By the way, this was started between episodes 7 and 8 so I purposely didn't focus on how they got back. It isn't that important anyway.
After Snow and Emma returned to Storybrooke, they were reunited with Henry and Charming. Regina had been there with Henry, but she offered no recognition or acknowledgement to Emma or Snow. Instead, she quietly turned to walk away before a confrontation. As she walked away, Snow called, "Regina."
Regina turned around swiftly, "What?" There was contempt in her voice. Snow hesitated because she knew that Regina would be furious. She also knew that she had to be told. Regina may be the only one who can help.
Snow took a deep breath and spat it out, "We saw your mother." Snow was a little surprised by her reaction. Regina showed a hint of fear. She had stepped back and shook her head. "You what?" Snow didn't know how to respond so she got on with it. "She's trying to find a way back here to get to you and Henry."
The all-to-familiar Evil Queen was coming out as Regina to a threatening step forward. "How does she know about Henry?" Her voice had dropped an octave, and the questioned seemed more like an accusation. Emma and Snow exchanged looks. Emma was the one who told Cora about Henry, but Snow didn't want to give Regina any reason to hate her daughter. It was too easy for Regina to get caught up in revenge.
Instead of answering, Snow just stared right into Regina's eyes. As scared as she was, she still held her ground. "I need to know where you stand with this?" Snow was pretty much asking if Regina was with them or against them. Regina put her hands on her hips and relaxed just a little. After contemplating, she gave a semi-suitable answer, "We can't let her get near him." Her gaze had shifted to Henry who was between Emma and Charming. They were standing completely silent on the sidewalk.
"Did she say when she was coming?" Charming asked. Emma responded, "Last we heard, she had found another viable way to get here, so maybe even today. "Great," Regina whispered to herself as she looked at the ground. Snow looked curious, "When's the last time you've spoken to her?" Regina didn't look up when she replied in a monotone voice, "Right before the wedding."
Emma looked confused. Regina? The Evil Queen? Married? Snow could tell that Emma was about to ask the wrong thing at the wrong time so she quickly came up with a proposal. "Regina? Can you take Henry to Red so he'll be safe and then meet us at the town hall?" Regina nodded, still looking at the floor. She reached for Henry's hand, put him in the car, and drove off.
"What wedding? Who married her?" Emma blurted out. Snow sighed, "My father." Snow and Charming started to walk up to the apartment, leaving Emma speechless and confused. "Wait," she said, running after them. She caught up with them at the door to the apartment. Charming was fooling with keys and door, intentionally staying out of the conversation.
"So she was your step-mother?" Emma asked. Snow nodded, and they entered the apartment. "Wow, so you lived with her? She must've been a nightmare." Snow shook her head. "Not at the beginning." Emma kept looking at her, waiting for more.
"She did the best she could. We shared a lot of good times together, but she started to grow more distant. She started disappearing during the day. I still don't know where she was going to. And then my father died. I believed her when she pretended to be upset, but I knew it was her doing when she sent the huntsman after me. It all went downhill from there."
Emma still looked confused, "Why though? Why does she hate you?" Snow sighed again. She was tired and didn't want to relive the story right now. "Read Henry's book. I think the story is in there." The book had been lying on the couch. In the few minutes that she had to spare before meeting at town hall, she sat down and read.