I have no idea who wrote these notes, or the ages of the (I'm assuming) girls.
If these are adult women writing these notes asking for dates and telling him that they love him and are his #1 fan... Then I'm not sure what to say? Get a life seems weak.
If these are young girls writing these spooky notes then my only question is Where is your parents? This is exactly what parents are for! To stop you from doing things you will regret (hopefully regret) when you are older!