Interesting email and that's all I will give it. The boat of speculation is nothing but a sinking anchor. Glad you have chosen not to read into it. As the backwoods hillbilly said 'it is what it is'.
It's time now to put all you have learned and become into practice this is 'your' test now to show your commitment to the one who has been there for you.
Glad you had a good Easter. Hopefully with time your D and her friends hearts will ease in sadness for their loss.