User blog comment:AdmMiller/What's so great about Tali? And why do most dislike Miranda?/@comment-743796-20100715180153

@ AdmMiller: Touche, but the scene with Garrus' didn't seem to imply any romance taking place between him and Shepard.

@ Harbinger265: I acknowledge that my view may not be the most accurate view, although it is a logical view. If you notice when talking to Tali in both of the games, there is no option for Shepard to ask Tali about previous relationships. Either that's because Bioware didn't want to delve into the topic, or had it so that Shepard would be her first relationship, or maybe they're saving any possible revelation for ME3.