This will prevent grace from sending you messages, friend request or from viewing your profile. They will not be notified. Comments on discussion boards from them will be hidden by default.
“I felt as if there were invisible threads connecting us - I felt the invisible strands of her hair still winding around me - and thus as she disappeared completely beyond the sea - I still felt it, felt the pain where my heart was bleeding - because the threads could not be severed.”
―
Edvard Munch