Crepes in Bucks County?
Central Perk Creperie in the Oxford Valley Mall does serve sweet crepes and has nutella. You can see pictures of them here. https://www.facebook.com/CentralPerkCreperie
There is a relatively new crepe shop in Behtlehem called Full of Crepe. Do not know if they have nutella.
Slate Bleu in Doylestown offers crepe as part of their sunday brunch. To the best of my recollectoin they are savory only.
Black Bass Hotel has a crepe station as part of their Sunday Brunch.
Further afield Crepe Bechamel in Wayne PA is a decent destination if you are over by the KoP area.
And Philadelphia proper has at least seven different creperie, the most noted of course being Beau Monde just off of South Street.