meaning behind meaning 1,1,1;2,2,2;...........8,8,8

When a side doesn't response to the other,
It will make things hard for them both.
How to mend things he do not know,
Only can he think and think and think,
What was his wrong causing all the fuss,
Sitting in a bus thoughts crosses his mind,
Writing name in poetry while thinking wonders before,
Now he hopes the feeling inside is containable