Reading about your dear Willa brought tears to my eyes. People who have lost animals they loved that much know the pain you have to get through to recover. But what matters is how much love you had for her. She knows you will love her forever. She had 21 full years of happiness, joy, and love. Im sure she appreciated having you be with her through the last days of her life on earth. But she now can be free of the the pain she was suffering. She can run free and eat all she wants in the Rainbow Bridge. But she will always be watching you, and loving you. I didn't know Willa, but she sounds wonderful and lovable and looks absolutely adorable!
I hope you are enjoying you new life in the Rainbow Bride, dear Willa. You mom will remember you always.