IIRC, Dick started enforcing the "no real names" rule in Titans Tower because of Lian's civilian baby-sitter. At any rate she was around by that stage, so the symbol makes sense. Besides this and Winick's Outsiders, are there any more occasions where Dick conceals his identity from team-mates? I'm asking because the rest of the Bats tend to fall either firmly on the side of "secret identity is secret" or have no concept of a civilian identity (or are Steph and therefore shun the usual Bat rules).
The only one who might call the ghastly Huntress one night stand a part of his "social life" would be the person who wrote it. What a surprise. Dick babbling like that in front of Bruce is just all sorts of... contrived sounding. Jesse REALLY isn't worth mentioning, so why do it? Ditto Clancy (Barely started? It NEVER started).
Tim's list of the women in Dick Grayson's life in NW #25 also included both Huntress and Clancy. At this point, isn't this gently mocking the Urban Legend Love Life pattern associated to both Dick (in meta, at least) and Bruce's billionaire playboy persona with nonexistent girlfriends?