'Regret that he didn't fight with his mother over his love.
Regret that he should've expressed more of his love for her and stayed with her till the end.
Regret that he went to other women leaving her alone.
Regret that he was with other woman when she was pregnant and in pain.
Regret that he didn't see her after their wedding anniversary.
Regret that he knows he is her happiness yet he behaved like a jerk.
Regret that he never even apologized her.'
A short story.
Warning: Required mature minded people to read not because it has sexual content, but because it has, anyways, read it by yourself.
You've been warned, remember.