The girlfriend was terrified and he thought since the bears were not going to hurt him,they wouldn’t hurt her..After he was killed,she sat in the camp waiting to die...No way to protect herself.... Those last few minutes of life must have been terrifying for her..... He was an idiot, but she made the choice to follow him and not bring any protection herself....
He was there later in the season than he used to, at a time when the bears were hungry and aggressive.
I have a motto: Most people are only alive because nobody has had any desire to kill them -- yet.