for me, i think the all of them are not fair. The man on catching the wife should have spoken with her and scolded her of her actions...asking her what he is not doing right to change if he truly loves her...without sin, there is no forgiveness
the wife should not have cheated in the first place...more so, suicide is not the best option, she should have pleaded and tried to ask for forgiveness
the law may have been to harsh and quick to jump to conclusion but based on the facts before them, they had no option than to find him guilty...
Life itself is not fair...Nemaste!