I am a 29 years old pakistani Man. I had a formal nikah with a Pakistani Muslim girl who treats nikah as just a piece of paper and tearing that would end the relationship not to her only but also her whole family thinks the same about the relationship. Also, she has been talking on the phone and chating with alot of other guys even after nikah and I found in her HIV test reports that she provided the indormation as "Sexual relationship with multiple hetrosexual males". So, on further inquiry I found that, she had been claiming love for me for the past 4 years and at the same time she has been having sex with every other person she met with here in USA. The reason I have been in relationship with her was her epilepsy, a mental desease. So, she and her tried me and kept me on probabation for six months to see if I can let her live the same type of life or not. Now, the question is that she has a mental problem and if I leave her and if she makes a stupid act like killing herself or something like that then would I be responsible for any such action, if she take? I dont think she would but dont want to be the cause of any harm to any person in the world and would I be asked for it in the life hereafter? as i can not ofcourse let her have relationships with other guys. It may be ok for her brotehrs but not for me. Her attitude towards me and the relationship is really very bad. It is bad to the extent that someone can not even think about. Also, when they dont think it to be a marriage, do I need to divorce her or not and in this case without rukhasati do I still have to pay the Haq Meher that I paid in the form of transfer of two shops to her name?
Please, explain completely.