The older granddaughter is a responsible adult, who works in a demanding job despite being in poor health herself. She also contributes financially to the household and does almost all the cooking. You haven’t said, but I bet she does a lot of the household chores in addition. I cannot for the life of me see where she needs to grow up. I see that there is an age gap of seven years between the two sisters. Is it the case that the younger one has always been the Golden Child with every whim indulged while the older sister has been overshadowed and overlooked yet expected to join in with the paeans of praise for the younger sister? It seems to me that you yourself have probably always favoured your younger granddaughter yet it is the older one who has worked hard to make a good life for herself with no help from others. Hers are the real achievements, not those of a woman who chooses to work part time and yet has saved £80,000. How is it possible on this income? Also, why is a woman of 31 with no ties or responsibilities only working part time? She will now be bankrolled by her partner, although how they will be able to keep up a mortgage and other living expenses on a combined income of £30,000 is a mystery. If this is now the sole topic of conversation, is it any surprise that the older girl disappears upstairs? She has also got her priorities right about men. If Mr. Right comes along, fine, but if not, fine also. As others have said, it’s the younger sister who needs to grow up.