Robin: If you’re looking for Ted, he left. Our little arrangement is over by the way. (…)
Barney: What happened?
Robin: Ah, he just insisted. He said he couldn’t do it anymore because “someone’s gonna get hurt.” I think we all know who he meant by that.
Barney: Do we?
Robin: Isn’t it obvious?
Barney: Is it?
Robin: Yeah. It’s Ted. You know what a romantic he is. He can’t separate the physical from the emotional. He’s all like…
Barney: I love you.
Robin: Exactly. He’s not like you, you know? Besides, we’re friends I don’t want to screw that up by getting involved. Dating friends never works out.