What should be my course of legal action against fake online boyfriend?

I was in online relationship with a guy for four months(jan-april). I confessed him that I like him, he was okay with it. We started being close just via chatting. Sexting , romantic talks were common. Not only this, he used to raise my feelings and force me to mas***** frequently, it was mistake on my part to do so which caused immense pain and damaged my private part. In April, I came to know that he is married. He blocked me immediately. I had his gmail, where he requested me not to inform his wife. Day before yesterday, I confessed everything to his wife and provided her our gmail conversations. She told me not to message me and her husband and blocked me too. I am in severe depression since then, I tried to commit suicide twice. I don't have enough proofs as we used to delete the messages. I told him you will the reason of my suicide and that's true. I just want them to be together and happy. If me/he takes legal action who shall be right??