She certainly seems devastated, but if she doesn't blame her boyfriend because she doesn't think the ashes started a fire, I think she is deep in denial. Those ashes can stay dangerous for a long time, and they were not properly disposed of, by her own admission. The ashes were put into a paper bag and then put on top of plastic bin, whereas for proper disposal they should have been put into a metal container with a lid and doused with water. Her boyfriend sticking his hand into this bag does not make for a proper ash disposal.