Meh. Boxy is more of a Helga than silvergun.
Helga is a crass, in-circle bully who people are still generally friends with. She is a rough tomboy on the surface but she has a soft belly underneath it all. She presents as someone incapable of affection, but truly she wants love more deeply than any other character.
Silvergun doesn't believe in love anymore. He's a capable sidekick in a dystopian cyperpunk novel or something like that.