I think that scene puts RUmBelle in an interesting position and actually potentially sets up the conclusion of RUmBelle’s story especially if Bobby stops at season 6.
I think by this season’s end Belle will agree to accept Rumple as he is. However season 6 will show her being dragged down by Rumple’s darkness (kind of like in real life where someone’s addiction also drags down those closest to them). Rumple will notice this and will be forced to make the choice of giving up the power for good to save Belle before or watch the woman he loves be destroyed by his darkness. At least that’s the story I’m hoping we will get and then Rumple chooses Belle and they get their happily ever after.