Each has to get the results of the actions he earned for this life. A pin at least must prick where a wound from a sword was due.
No one can suffer for all time. No one will spend all his days on this earth in suffering. Every action brings its own result, and one gets one's opportunities accordingly.
Ordinary human love results in misery. Love for God brings blessedness.
We suffer as a result of our own actions; it is unfair to blame anybody for it.
One suffers as a result of one's own actions. So, instead of blaming others for such sufferings, one should pray to the Lord and depending entirely on His grace, try to bear them patiently and with forbearance under all circumstances.