GLaDOS Actress and a Portal Gun Help Guy Adorably Propose to Boyfriend

People propose at fan conventions like PAX, Comic-Con or GenCon all the time. And, yes, many of these declarations of love involve costumes. But a very select few—maybe only one?— have the fan-favorite actress who gives voice to Portal series antagonist GLaDOS singing “Still Alive” along with a banjo. The cuteness… » 8/05/13 12:30pm 8/05/13 12:30pm