The person you don’t save dies, which, naturally, ends your relationship with them. During the Virmire mission, you must choose to save Ashley or Kaidan.If that’s a lie and you’ve been flirting with Liara, too, you’ll then be confronted by them both and forced to choose with whom you want to form a relationship.Tell Ashley you have only a professional interest in Liara once she joins the crew and you’ve spoken with her at least once.Speak to Ashley after the Noveria, Therum, or Feros missions to take the relationship further.Comfort Ashley after the Prothean Beacon incident.