The fuel pump COULD be failing, pulling more amps to keep it spinning which is why the fuse blew. Be worth checking wiring to the pump is ok, although on a modern car I doubt this is the issue.

Having said that I seem to remember a problem with them where there is a wiring plug fitted to a sensor on the end of the fuel rail. The wiring to this plug has a habit of wearing through or breaking. This measures fuel pressure and controls the demand of fuel from the pump so could be worth a look.