Well it might help to know what results you are expecting and what you are actually getting.
currently what you have here
y => y.Accepted == true && y.CreatorID == userID)
will only get the friendships in one direction. meaning if someone else created the friend request and your user accepted it, then they would be the 'FriendId'. If there is a row put into the Friendship table for both users then this doesn't matter, but assuming 1 friendship record for 1 relationship, you'd have to add the
y => && y.FriendId== userID)
as well.