My partner is having an affair with a woman in his office; will divorce be the best solution?

I and my husband were once the best buddies; we use to talk a lot and used to discuss every matter concerning our lives. We are having two kids. When the kids grew up, our expenses started getting increased. I discussed the matter with my husband and started a job. As usual the job hours make me tired. I was not giving appropriate time to the children and husband. As I have to manage the job and household activities. I was having less time and more work. It has been two years of my job. I started feeling that my husband has left no interest in me or kids anymore.

He started spending nights outside the home while making up the reason that he has to go outstation. I never scrutinized because I loved him and trust him fully. One day I was at home and got a call from his office that there was an important document they want to have his initial. If he was at home so they can send the document at home. I told them that he is out station for the office work; the secretary denied and told me that he has taken holidays. I was surprised. When he came back I asked him what’s the matter and his stumbled voice revealed the affair. I started crying and was in a hopeless situation. I love him and I cannot divorce him. I booked an appointment with a counselor who took many sessions and worked hard to remove our communication gaps. Now we are living a happy family.