Is this more an insult to Shiro or to Archer?

I assume she's trying to prevent the unlimited blade works ending. Archer was not a happy boy.

NegativeSoul said:

Is this more an insult to Shiro or to Archer?

it is understood that she is only trying to be cautious with shirou, taking care of him, so that he does not end up suffering how archer

Guys, she's only afraid of Shirou getting skin cancer. :D

I mean all that browning of EMIYA & darkening of EMIYA Alter is proof that Shirou could potentially get lots of skin cancer so she is just trying to show him he needs sunblock on before he goes out on a hot, summer day. :P