I've been married to the same man for 12 years. In that time, I have gotten close to his younger brother. At first, it was harmless flirting that my husband condoned. I REALLY think my brother-in-law knows and either feels the same, or has simillar feelings. I can't get him out of my head. I think about him constantly. I feel like a high school girl with a crush. My husband and I have not had sex in almost two years, and my brother-in-law and I have never had sex. I fear that one day that will all change. But, I'm not sure it will be a bad thing.