Oughta mark this kind of thing with a *SPOILERS!* warning. Just a thought. To the questions!
1. Tangled the strap in the winch on his arm. Humans were not meant to bend like that, which is why he went down for the count.
2. The 'girl' was the natural form of the Plants, or the core, if you will. They produce the energy. The rest of those big light bulbs are just a way to utilize it.
3. No. "I will survive," means he intends to go on living.
1st Law of Thermodynamics: You can't win.
2nd Law of Thermodynamics: You can't break even.
3rd Law of Thermodynamics: You can't quit.