How can you tell "in the moment" that your message isn't being received?

What does this saying mean: "我舍友说每次看咱俩视频 他们的心灵都会受到一万点的暴击伤害". i was watching a film where 2 characters were video calling each other and one of them said this. google translate couldn't . a lot in advanced.

What is the potential danger from an accident at a nuclear power plant? a) fire and large scale explosions b) exposure to radiation c) meltdown of the plant and surrounding community d) entire cities could be wiped out

What is the author trying to say in "do kalakar" by mannu bhandari?