SF CHRONICLE - Feb 13 - Innovators like to envision a future in which technology will streamline, simplify and democratize love in its many phases - from dating to sex to marriage and even heartbreak. Virtual reality and apps can be used to simulate sex and intimacy. Facebook last year introduced a "take a break" function that allows people getting over romantic relationships to control how much they do or don't see of their ex. Others online dating services uses biometrics and science to match people. eHarmony CEO Grant Langston said the company will incorporate more advanced scientific tools. "I can see a day where people take a swab of their cheek to get a DNA-level analysis of what they would be attracted to," he said. Some dating sites/apps are getting people to put down their devices and meet in person. "You won't get a sense of that real chemistry until you're meeting face-to-face," said Mandy Ginsberg, CEO of the Match Group. Lesbian dating app Her started hosting in-person events last year.