It can also be defined in a humorous way:
No,vio - which means did not see, such as in she did not see the guy's bad qualities.
"There she is, Juan's girlfriend."
"El novio de Lupe es un mujeriego."
"Lupe's boyfriend is a player."
"Lupe no vio, el novio verdadero."
"Lupe did not see her boyfriend for who he really is."