Stress and depression. Feel irritated.

I got married in 2018. It was love marriage. I flee from my home to get married. Things were not going well. I was not getting his attention and time. He used to be always  busy in his phone. Firstly I thought he is phone addict. But within a year I came to know that he was cheating on me. He was involved in pre matrial affair which continued after our marriage also. They were also physically involved. He used lie to me everyday. He used to make stories about that girl saying she is jus a frnd and needs emotional support. Also he used to lie to me and used to meet her. I investigated and found it that he was cheating. After a lot of discussion we decided to give our marriage a chance. But the thing is I'm not able to overcome this trauma. I get flashback. He visited the same city with her that he visited with me. Now whenever I listen that city's name i get upset. There are many such things that makes me upset. I'm not able to focus on day to day activities. I always feel irritated.