I am so very sorry about your loss of Simba. I am getting close to the time last year when I lost my Little Guy and that keeps the pain fresh so I understand what you are feeling.
You have written a beautiful poem for Simba in Tributes and I hope everyone goes there and reads it.
I would love to see a picture of her if you have one to share. Else, or in addition, you can post and tell us about some of the wonderful memories of her that you have...these will always remain with you...they cannot be taken away...as our babies have been.
Take care and I wish you peace and healing. It takes time but time does help us get stronger about coping.
Hugs to you and your family...and a special hug to your new Angel.....Simba.
Their memories stay with us forever....we only wish they could too!