Fan Casting Satellite Love Interest in Sort by Tropes

A type of Satellite Character who exists primarily to serve as the Love Interest for a main character. It doesn't matter what their life was like beforehand; their focus in the story revolves around the sole fact that they dig said main character, and the main character digs them. The test, of course, is to ask, "What does this person do when they're not being a love interest?" ...if it's hard to answer, you probably have this. Despite its negative connotation, this is not necessarily a bad thing. If this character is simply not important in the story at large, then there is no reason to believe that they should have as much depth as the main character who does drive the plot.