What do you mean his grandmothers are already dead? Wait a minute, you don't think he's avoiding me, do you?
Well you know, claiming that your grandmother is sick is the classic excuse used to get out of doing something.
Oh man, I hate rejection. It really makes you feel terrible, especially when you really liked the person.
Is there anything I can do to help? Just remember that I'm there for you if you want to talk about it.