This is how I think the “tragic” flashback could go for 3×3. The fact that Tinkerbell, Regina and Robin Hood are all going to be in that episode makes me think they’re connected. Maybe Regina is the one who curses Marian in the first place and then it’ll be confirmed that it’s Tink’s wand that Robin stole from RH to save Marian That doesn’t leave much room for a love relationship to develop between RH and Regina. Maybe Robin fancied Regina (for some reason), but she rejected him since she wasn’t over Daniel. He married Marian instead, and then Regina cursed his love, Marian, despite the fact she was pregnant (possibly with Tamara), just to be spiteful. “If I can’t have him, then nobody can” uuber Evil Queen mentality.
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy