What will happen to my husband and children if I give up to be with my ex?

8 months ago, my ex texted me unexpectedly, and we met again. The first time we met was at a coffee shop, and today it was also at a coffee shop.

I am 30 years old, have a husband and two young sons. We work for the government with a stable income and a normal life. My husband is the second person I love, introduced by a relative, my first love is 2 years older than me, I was 18 at that time. I am also the first and only person he loves until now. We live in the same place, met by chance and fell in love. During the 3 years of love, I was upset a few times when I saw other girls expressing their feelings for him, but he never made me jealous. As for me, I am very serious about my relationships with others to show respect for that in him.

I went to college and he didn't. He stayed home for a year and then his family gave him money to open a clothing store. Every weekend, either I went home or he went home, never missing a beat. When I was in my third year of college, he was addicted to drugs. I was very depressed, cried and lost weight. I was worried but only had weekends to see him and encourage him. There were times when he went home, when I came back I kept him and asked for leave from school to buy medicine, buy food, even bought a chain and locked the room to help him quit. He couldn't do it even once, we hugged each other and cried, when we had no more tears I had to unlock the door to let him go. About half a year later we broke up. At that time, I had no other choice, I was still in school, my parents were very sad, they kept calling to scold and forbid me to leave him, but he still couldn't quit using drugs.

After a while, he went abroad. His parents sent him there with relatives for a change. After six days, his sister called and said he was back. I didn't call or go see him. He didn't call either. Then he left again, this time for more than 5 years. Through his sister and social media, I saw that he was getting better every day. When he had been gone for 3 years, I got married to my current husband. During that time, we had no contact. Then he also returned home to start a family. He and his wife stayed home and opened a pawn shop. His child is now over 2 years old. Well, I'm happy for that. He got through the stormy years and now has a stable family.

8 months ago, my ex texted me unexpectedly, and we met again. The first time we met was at a coffee shop, and today it was also at a coffee shop. I saw his eyes like those passionate days many years ago, then he turned away, pursed his lips, and closed his eyes for a long time. We only talked when we met, it happened 2 or 3 times a week, no emails, no messages, and nothing else. He said that during the years of addiction, he had suppressed everything, and now there was no way he would sleep with another man's wife, he would give everything to me when I became his legal wife. But what about my husband and children? What should I do now?

According to VNE