my family situation Similar to @chanchitra. I can clearly see the partiality to first son. Once my lil son(7yrs back then) was also able to see the difference how she favored the elder one's son compared to him. This he felt when both the grandchildren were together, the pampering the other one got!. Don't think he will even remember it now as it only obvious/feel it when all are together. Luckily the times we all are together are very less and I talk only on occasions,so I can ignore this. My MIL is very clever, she will sugar coat while talking individually to the sons,and try to keep both in her love control! Same way with the brother, he constantly keeps his brother in check by guilt tripping him, that he is not calling often, or not visiting. I tried pointing it out in early years of marriage, but he is in denial...it's his mom and if he can turn a blind eye to the partiality so be it..Now I don't care.