Infinitely-High Boyfriend-Factor
This article applies only to humans. For the Infinitely High Pokémon, see Yawning Squirtle.
The Infinitely-High Boyfriend-Factor is Chris's primary concern when he is on his Love Quest. It refers to the impossibly high probability that any given girl he speaks to will already have a boyfriend, making it impossible for him to find a sweetheart. The fear of this factor leaves Chris all but paralyzed when he even thinks about speaking to a woman in real life - a fear he has named Noviophobia.
Mathematicians have worked in vain for years to disprove Chris's theorem, but the proof is in the pudding. Chris is still single, so it MUST be because all the boys have taken all the girls. This led him to narrow his search and focus on boyfriend-free girls.