The second girl was sitting next to him.
The first girl wondered why didn’t she think in a way like “I am the one who is supposed to be sitting next to him”.
Rather, she thought in a way like “I shall never sit next to him because that will never be safe”.
The first girl didn’t think about sitting next to him as a choice,
She just knows this is not allowed,
and this is gonna be as it is forever.
The first girl got really hurt when she thought as “what if I am the one who’s sitting next to him then?”