Unsafe backing? Idaho

All four tires where in my lane. I backed out in my lane front of truck heading west I hugged the ditch to straighten out already in drive and moving. All my tires were in my lane. The bed was on the line not over it but directly on. She came down the hill saw me and slammed on her breaks. Then she started swerving she came into the lane and then flew back into hers several times. When I saw her I already knew she was going to hit me so I started getting off on the shoulder to avoid her and she slammed into the back driver side. She hit my L arms right in front of the wheel lift. She went under it.

 

I'm honestly not sure why she freaked out either. If she would have just slowed down or even tapped her breaks she would have been okay. It was super slick out today snow was everywhere I had already been to 3 accident's. I personally think she was going to fast for conditions saw me straighten out and slammed on her breaks then tried to gain control. She was swerving super bad. Then her husband shows up screaming about how I hit her. How could I hit her on a straight away with the back end of my truck?

 

I don't think she was aware I was backing at all. I don't think she knew until I told her. I didn't get to hear what she told the police but when her husband showed up he made it sound like I was in the middle of the road. She kept going from totally calm to breaking down sobbing. Kept putting her head in her hands and then throwing her arms everywhere. She said she was on her way to work. Even if she was just going straight she wouldn't have hit me. It's when she started swerving

 

I'm pretty sure my dash cams got her swerving everywhere I have a front and back. It's just a large blinds where she actually hit.

 

They took a written statement from me but not a verbal. The first officer I was just at a call with and he asked me what happened and I told him, he had to respond to another call. The next officer told me to wait in the truck and only came to talk to me to give the citation and take my written. I'm a younger driver the lady who hit me is late 40s and so was the officer. My best guess is he probably thinks I'm some young #######.