Don't say "sorry" , you are most welcome to talk about this here ! I was also very much attached to my grandparents ; in fact after so many years , I still miss them a lot . MY mom's father was my favorite grandpa !!
It is always hard to deal with the loss of a loved one ... . The best thing you can do is cherish the happy memories , and also talking about how you feel ! So if you like , you may always pm me !! There is a Dutch quote that says :"Gedeelde smart is halve smart" ; which means : when you share your sorrow with others , it is only half as strong ! Chear up Neko!!