Too severe, seldom executed

Tropes so that you don't waste your precious time:
Heartless X Softhearted
Lively X Lifeless
Mafia X Lawyer
Breaker X Broken
Loved by none X Hated by everyone
Fuck the law X Trust the law

"I am a monstress, I kill, I lie, I am the one who didn't even spared my own family. You will regret by marrying me, JUST LEAVE " she said all this with a sinister smile on her lips hiding her own fear to not show what real she is.
But the person in front of her was not some moral man, immorality and tricks flow with the blood in his veins. Sensing the fear of her insides, he said in a very cold voice "I am not any moral bastard who would get fooled by your light warnings, I am a fucking immoral devil who can sense the danger even before its execution". With taking a long breath he said in a warm tone "Even if the god will tell me to leave you, I won't"

She knows she can't escape now, she knows their efforts will go in vain but still she was taking the chance. And guess what she succeeded in this. And after one year of living a life of a simple government lecturer in the college isn't that boring. Now is it. She was contented by teaching the kids and the future of her country after all she wanted to do was to serve for her country 'If not the lawyer then lecturer is also good' she sighed and went towards her room.
Unaware of the gawking eyes who were following her every moves. After the dinner work she went on the bed and like every other night her phone ringed and while exhaling a long breath she answered the call again. "YES? Who the fucking bastardly angel is speaking, pardon whispering." 'Exhausted' is a small word to describe her condition on this call matter. What not she did switching the sim cards, reporting to cyber cell, changing the phones but all went futile. But for the first time answer from other side made her shiver in fear "LOVED THE VACATION? TIME TO COME HOME , HMM?" I know people guessed it who's he, time to start the unfaithful but faithful love story.