I would chose benevolent because he’s so kind and well meaning but perceptive is also possible I think because he I guess knows how to help and is willing to help.
A mad scientist is generally called "mad"/ "insane", because of unsettling characteristics, and the dangerous/questionable experiments they run and work on. For example, the creator of frankenstein, from 1818, was said to be a mad scientist, this isnt like the green monster, its the person who sticked different things to different people and tried to run electricity through it to act as a heart, also just to see if he could create a human like creature. THATS a maad scientist, but the stereotype mad scientist according to wikipedia, is white male, aging, crooked teeth, messy hair, lab coat, green glowing liquid filled test tube, goggles, gloves, and striking a dramatic pose while cackling evilly
HOPE THIS HELPED YOU :))))
<span>The words he has chosen which are "difficult, force, crooked, struggling, tangled, fallen, fear, faint, and hungry", shows that he is going through quite a scary and tricky time, but it was hard for him to pass that swamp, and you can see he chose excellent words on how his journey was like. Plus the words " struggling, fear, and hungry", shows what difficulty he is going through and you as the reader imagine yourself in that position and you would feel it all scary on how he is experiencing it.</span>
He reacted because of the gift that he had gotten her. He didnt want her to cut it off.