Hello,
Kindly find the answer in below lines:
Case 1: if user B accepts a friend request from user A, will the request be removed from user B's list of received friend requests?
Ans: Yes, it will be removed because A is friend of B now.
Case 2: If user B rejects user A's request but does not block user A, will user A be able to send another friend request to user B?
Ans: Yes, A will be able to send another friend request to user B.
Let us know if you have more question for us.
Himanshu Sharma