Bei Chuan Yun Shang Jin
They got married without love or affection. It's on both of them to fight for their happiness. JZT was wrong for meeting up with her ex without letting SC know. Instead of talking it out immediately with JZT, SC was being petty towards the ex instead. At the end of the day, it's their marriage. If your partner's actions make you feel uncomfortable, talk to them about it. Being petty with the ex doesn't change the fact that JZT met with him or would meet with him again. These two never talk to each other about anything yet they expected a stable relationship. They are both at fault. There's no need to berate JZT and make it look like SC is a saint. MYC and SY have mentioned it many times that SC is petty, a male chauvinist, and egoistic. He's not so easy to deal with. JZT also isn't an easy character. She is a proud woman. In past chapters, JZT held a grudge against SC because he promoted nepotism, and SC's reply was that he had to do act according to his superior's order. That's why she was predisposed to think he used his authority to mess with her ex. They lack communication. All of these should have been made clear after they got married, but they chose to "go with the flow" when there was no flow at all. Thier relationship is stagnant. They are both to blame for failing to open up to each other. I am so glad SY pointed it out clearly to both of them. Hope they work it out soon.