Board Thread:Spoilers!/@comment-24663542-20150216235529/@comment-5106672-20150219220013

Gusey1397 wrote: In 3x12, Belle recognized Robin because he announced himself as Robin. She knew he was Robin Hood when the Sheriff of Nottingham told Rumple and Belle. She could have just put two and two together.

Robin and Neal were walking side by side and Belle was right one step behind. Neal called him Robin, and they might have talked for a while before she interrupted them and hugged Robin. She might have heard who he was from that, and with the Curse just undone, Rumple presumed dead and stuff she might have not bothered elaborating further.