Quote from Robin in The Rough Patch
Robin: Is that an engagement ring? Are you? Barney: Oh, no. No. That's not me. They must've delivered it to the wrong table. Could you imagine, us getting married? Robin: Well, we are committed to each other. Barney: Most of your stuff is already at my apartment. Robin: Might make taxes easier. Barney: Speed up your citizenship. Robin: "Scherbatsky" is so hard to spell. Barney: My mom would be so happy. Robin: Eh, I guess so. Barney: No reason not to. [later, at MacLaren's:] Barney: We're getting married! Robin: Not so loud. Geez!