Board Thread:General Discussion/@comment-68.125.32.224-20130312042332/@comment-897816-20140515111031

As passionate as Cora and Rumplestiltskin's relationship was, the fact that Cora willingly chose to remove her own heart for power and influence shows that it wasn't True Love. As for Belle, as far as I remember, they're only shown kissing once in the Enchanted Forest and at that point the Dark One's Curse starts to undo, till Rumplestiltskin pulls away. Presumably, if he'd continued, the Curse would've been broken. In the Land Without Magic, it's important to remember that magic works differently there, in particular the Dark One's Curse, since Gold was no longer bound by the Dagger through season one.

Additionally, as evidenced by Gold's behaviour in that last few episodes of Season Three, he's not being 100% honest with Belle, which will presumably come to a head in Season Four.

(As a side note, regarding the above discussion on having multiple True Loves, Regina canonically has two - Daniel, and ((for spoiler purposes I'll simply refer to him as)) the Man with the Lion Tattoo.)