I think my wife had sex before our marriage with my friend?

Hello, i am a 32M from Egypt and my wife is 25F are we've been married for 1.5 years before that we were in a long de facto relationship for 3 years.<br><br>I have a friend 27M have been friends for 20 years, we used to hang out and had good time together, recently he is a bit distant, i confronted him about that and he said that he feels bad or something don't know why and i had the feeling that something is going on but he kept denying, i asked my wife to go to the doctor because i feel like i have a yeast infection, she went alone and the doctor diagnosed her with yeast infection and said that she got it from having unprotected sex with a stranger, she was embarrassed and denied everything and said that she thought that i got it from some sex worker at some point and gave her and the doctor said that the person who gave her is a stranger because she has never been in contact with him before, she got furious and left the doctor, she came at night and she cried and confessed about it, she said that she meet him on the first day we started dating and she said that she didn't want to marry me she wanted him but he wanted to be single and have fun and she said that she decided to marry me and be loyal but after 3 years, my friend got bored of living in the city and decided to live in the small town where we live and at some point she cheated on me and she said that she couldn't resist whatever the fuck she is talking about.<br><br>Personally, i felt like i got punched in the gut, i don't know what to do, should i divorce her ?, go to the police ?, try to make it work ?.<br><br>**Edit: I am sorry if the post is long and hard to read, English is not my first language**<br><br>**Edit 2**: first thank you for everyone who replied, i am going to answer your questions.<br><br>1. My friend is not my best friend, it's just a friend and we are not hanging out that much anymore because of work and stuff.<br><br>2. The reason why i am mad at my friend is that, he knew that at the time they cheated on me i was engaged to her, he knows that culture and how big of a deal cheating and before marriage sex is considered in our country and he knows that he hurt me and my family and her family future.<br><br>3. I don't want to devote my life and hurt them and the rest of the family, i am going to divorce her.<br><br>4. I asked her about my friends and she said yes and don't why she said that, i am not going to tolerate any type of disloyalty and cheating and i am not going to do a paternity test for my daughter because that would make me doubt.<br><br>5. I am thankful for my parents and sister they are very supportive and didn't judge me, they are very mad and hurt.<br><br>6. i am going to talk to a lawyer tomorrow morning and i am pretty sure that i am going to divorce because i have lost trust and i don't want to spend the rest of my life sad.<br><br>7. yes i am mad at my friend, he hurt me and the people i love, he destroyed my family.<br><br>8. I am not going to force them to get married, i don't want him to marry someone he doesn't want to marry.<br><br>9. I am sorry if i have used the words stranger and sex worker in a wrong way, as i said English is not my first language.<br><br>10. yes she admitted to do it on the first year of our marriage not the second.<br><br>11. i am depressed and sad and thank you all for your support.<br><br>12. no matter what, the reason is not my fault, it's her choice to cheat on me, she is a grown woman and she knows what she is doing.<br><br>13. no matter how close are we to my friend, no friend would do that to another friend and no matter what, he destroyed my family.<br><br>14. thank you all for your comments, i am going to talk to a lawyer and i am going to divorce her, and i am done with my friend and people who are going to attack me in the comments are just people who are into cheating or people who condone cheating.<br><br>15. i am sorry if i am not replying to every comment, i am currently overwhelmed and the situation are too much at the moment.<br><br>Again, thank you all for the support, people who are attacking me, let me live my life and stop judging me, i am hurt and sad at the moment.<br><br>The update:<br>I went to the lawyer, my wife and her family called me and tried to convince me to stay in the marriage and work it out, my family are saying the opposite, i am devastated and sad, i am depressed and i can't eat or drink, i don't know what to do.<br><br>**Final Update**<br><br>I talked to my wife and told her that i am not going to divorce her, she was so happy and she cried and said that she will be loyal again and she will do anything to make it work, and i was still hurting and i needed time alone, she agreed and stayed with her family for 2 days, then she came back, she was all affectionate and loving and i told her that it will take time for me to trust her again and she agreed, after 2 weeks she wanted to get intimate with me, i didn't want to at first i was hurting but i got over it and got some wine for her and the mood are great, she was drinking heavily and she was drunk and i got her to the bedroom and she asked why do i still have the gun, at first she asked me to give her the gun and kill her with it and then she said that i can kill her with it and she is okay with it, i laughed and said yes, and i shot her in the head while she was drunk and i burned her body in the desert and threw the remains in the sea, then i went to the police and told them the whole story and they were shocked and said that are going to investigate, and they took my parents and sister to investigate with them, i am waiting for the verdict.<br><br>**Again this my last update on this post and please stop messaging me, thank you all for your support**