She was HIV positive by her father and I'm mentally disturb

Sir, I got married with a girl she forced me to meet to have physical I was really emotional for her because she was lying to me from starting, she forced me to get married and after all I agreed and she is HIV patient from 2008 by her father and we met in 2011, Now we have a child age 5yearr and we are safe and not HIV effect,. I was loosing me life hopes and happiness due to her behavior and disrespect and cheater mind, so I was loosing control when she was cheating on me regularly after telling her to stop all these, I emotionally asked her than She accepted that in 2007 she got married with a guy name Vijay she left her home for 20days and also she was pregnant by him, his father was also making illigal relationship with her from1992, and in 2008 to 2011 when we met she was doing group s*x with more than 10 people's without protection, me and my child is not HIV positive, she have filed a case after month of leaving home and now I want divorce plz help me save me and my family,