DEAR AMY: Many of your readers seem to have issues similar to my own, and it’s great to know I’m not alone. I’m having a unique problem. My husband and I just announced to our 13-year-old daughter that we are getting divorced. We expected anger or sadness. Instead, she laughed. After laughing, she went into her room to FaceTime her friends, and we overheard her still laughing. She refuses to speak to us. I’m not sure if this is just her expression of discontent, or perhaps something deeper. Have you ever seen a case like this? \- Concerned in Suburban Chicagoland DEAR CONCERNED: I’ve never see…