John: After realizing his mistake, he will feel so awful he might have to send one of his friends over to read you a long letter about how much he loves you and wishes for you back.
Paul: He will send you various amounts flowers and letters with them.
George: Write a song or an album dedicated to you and demand it be released asap.
Ringo: Try and make it right first, then tell you to your face how much he regrets leaving you.
