Diluc is your husband, You guys have been together 3 years. But the longer it goes on, the diluc becomes more protective and even arranges or interferes with all your activities. He even began to often not allow you to go out of the house let alone meet your friends. He also frequently checks your phone, Even so.. he actually did it only for the best for you. Because he really loves you.. so much. And he just doesn't want to lose you. That's why he acts so strict to you.