8. A computer-implemented people matching system, comprising one or more processor-based devices configured to execute: a relationship-altering function that enables a first person, who is a first user of a computer-implemented system, to explicitly alter a computer-implemented directionally distinct relationship between the first person and a second person, wherein the second person is a second user of the computer-implemented system; a people matching function that generates a match comprising a first person and a third person, wherein the match is generated based, at least in part, on an inference from a plurality of usage behaviors, wherein one of the plurality of usage behaviors is the first person using the relationship altering function to explicitly alter the computer-implemented directionally distinct relationship between the first person and the second person; and a computer implemented explanatory function that delivers a reason for the match to the first person, wherein the reason comprises one of the plurality of usage behaviors.
13. The system of claim 8 , further comprising: the reason, wherein the reason comprises an expression of interest by the third person toward the first person.