I appreciate your support.
You have been extremely supportive through this difficult time.
You're my best friend.
We must thank you for your support at this time.
I want to thank you for all the support and concern.
That was very kind of you.
Your support has made me a stronger person and I will forever be grateful.
Thank you for being there for me always.
Taking the time to help me was a very nice thing for you to do.
Thank you for thinking of me and taking the time to be kind.
You are the most beautiful thing that has ever happened to me.