A fan of Calvin's work who provided him with her contact information. Calvin brings her along to prove Ruby's reality to Harry, but Ruby's jealous confrontation with Mabel inadvertently validates to Harry that Ruby is physically real.
Calvin knows Mabel through her admiration of his work.
Mabel is a fan who gave Calvin her number, and Calvin meets her while trying to verify Ruby's reality.
Mabel becomes the focus of Ruby's early romantic jealousy.
Ruby believes Calvin is cheating when she sees him with Mabel and confronts them.
Explore the full interactive character relationship map of Ruby Sparks