Having an extramarital affair with married woman wants to marry her

Hi, I am married man and having extra maritial affair with whome is also married female. we know each other since 1 yrs, we love each other and wanted to get marry, she run from her home 2 times, but her husband try to threat use about adultery and other legal cases. I have read about adultery. but recently I read the new that, adultery is no more crime now. she contact me after that. so we are have some hopes. but before I want to go further, I want to know what complication can come if she run 3rd time. they threat both of use by police case. I wanted to what are possible case they case put on me, and what are possible option for me.