Peter Pedant, I'm a biochemist, chemist and biologist not a mathematician. As a consequence, I don't have an Erdos number.
http://cs.ucsb.edu/~koc/favs/erdos.html
Besides, bearing in mind that Rosalind died in 1958, I can reveal that I was a mere boy at the time. That's why I pointed out that the colleagues that I discussed Rosalind with are now deceased - they were considerably older than me when I worked with them.
I can't see how you can say you have an Erdos number of 2 on the basis that you knew someone who knew Rosalind. That does not entitle you to an Erdos number. See the link above for clarification. If on the other hand, you are a mathematician and have written the necessary papers and met the other criteria, you may well be entitled to an Erdos number. Please let me know the name of the author you have published with.
Humility might well be a word your friend would not use. He is entitled to his opinion. I've spoken to about eight or nine people who would use the word. Rosalind did not suffer fools gladly. Could that have been the issue?
As to Juliet Stevenson's Horizon portrayal, I have seen the documentary and I am of the view that it does not provide a true picture of her personality. I'm not alone. So called factual drama often leaves a lot to be desired.