Mars and Venus springs to mind! Try telling your girlfriends/ mum/ sis about it loud enough that he can overhear... he'll soon become more interested ... at which point you can choose to tell him or not!! Just one of those things I reckon... Ooh... and why dont you try the silent treatment for a few days? That's bound to have the desired effect eventually!! Even if it does feel a bit rubbish at the moment 
