Torn Between Forgiveness and Past Betrayal: Should I Trust My Wife?

My name is Rajesh, I am 50 year old 4years back I got to know that my wife is in relationship with someone and after inqiuring in detail I found that, that was her second relationship. Earlier relationship was broken 1 year before. and she told me all herself when I ask on condition that if she didnt tell me I may take dicision of breaking. so sho told me everything without hiding. she is telling me that she still loves me. Arter that she stoped all contacts but after a year she strated developing contacts with facebook messenger and developed one more relationship with one FB friend. again when I got to know she stoped contacting him. this time ther was no physical relationship, but she admitted that he once kissed her. the boy tried to contact her in all ways but she somehow stopped this matter. I love my wife very much. I forgive her every time. three year passed now all this year she was not going outside alone without me. but in these days I also insisted her to go out, and she started going to yoga class where she used to go early and she is very happy now days. I dont know whether I am doing correct or not, some time I still have dought in my mind whether she will start again doing affairs. I am some times afread, dont know what to do. whether I should still continue trusting and loving my wife or what. we have one son age 16 now. I am confuesd sometimes but till date happiness is maintained in the family. But I am feeling lonely somtimes. what to do?

I had an arrange marriage and married for 1.5 years, after marriage I came to know my wife is not virgin, she never told about her past relationship during our pre-wedding meetings for knowing each other and fixing marriage when I had asked her if she had any past relationship as I had told her I was never involved in a relationship. She was even in touch with him after marriage and had even invited him to our wedding though he did not come. Sometimes she said she had physical relationship out of curiosity, then changed her statement to that she loved him and then said that he used to force her to have physical relation. When confronted she deleted all contacts with him but I still not able to trust her though she says she loves me. I wanted to speak to her parents but my mother asked me to stay quiet. I have lost trust in her because she was never honest from the first day, what should I do, please guide me, this feeling is just killing me! Had she told about it to me in our meetings, I would have rejected thus alliance. Please guide me Anu, I need your help!