I don't think it was a suicide. She was supposed to be with another person and they ducked out at the last minute. Plus she tried to send failed text messages asking for help.
I think it was just a simple case of a city person being in the woods. I think it would surprise most outdoorsman how naive city people can be when it comes to the woods.
And quite frankly, being a woman might have had something to do with it. Their brains just don't work in a way that would be useful in such a situation. Some of the questions my girlfriend has asked me over the years make me wonder if she'd make it out or not in a similar situation.