Aww, of course it's not stupid. You felt you were close to him, you've lost someone you really cared about, you have every right to be uspet. When a sort of family friend who had worked for us for years died, I cried so much at his funeral and was really upset for a few days, and my mum said what was I crying for, he wasn't like my grandad or anything, I hardly knew him. I know she didn't mean to be nasty but it really hurt. When people act as if you don't have the right to be upset it's horrible, because on top of losing someone, you're being told you're over-reacting and never even knew them, and you feel false, a fraud. You have every right to be upset, but sometimes people just don't understand grief. They're not trying to be nasty, they just feel things in a different way. I hope you find some comfort and get through this time.