If have been through something very similar and my heart aches for you. Give Malakai a kiss and hug from me.
Spend as much time as you can. I held our girl Amber close and gave her loving kisses while I recounted all the wonderful moments we had together from the time we adopted her till that very moment. I let her know that if she needed to go I understood and let her know that her brother Raphael would be waiting for her at the bridge.