It would be their first time alone together, without a group of friends around. Jane's heart raced as she realized what it meant to be on a real date with Eric. For so long, they had just been friends, and she wasn't sure how she should act.
You can't just change a relationship by fiat (declaring that you are dating).
Interactions are interactions, again declaring one to be different doesn't work.
Although if we take "date" as a codeword for "now we're allowed to fuck" I suppose it makes sense. Even the bit about not being sure how to act.
For fun, go around asking dating couples if by dating they mean "allowed to fuck". heheh, ask some no-premarital-sex Christians why they are dating. maybe to be allowed to kiss -_-o
Joe: I want a girlfriend
curi: you're horny?
Joe: *gets offended* lonely!
curi: so you want a friend?
Joe: that's a girl
curi: why a girl?
Joe: not attracted to guys
curi: what difference does that make? you said this isn't a horny thing.
Joe: erm, uhhh
curi: you make no sense
Joe: SHUT UP
Joe: Yo, Dianne, will you go out with me?
curi: why'd you agree?
Dianne: i wanna date, and no one else asked
curi: you slut!
Dianne: excuse me? i'm a total prude!
curi: so you just want some free meals?
curi: you'll kiss him in return?
curi: fine, you explain it
Dianne: he'll buy me stuff, and then we might fall in love. Isn't that romantic?
curi: what if he doesn't wanna pay?
Dianne: i'm new agey. i might allow it.
curi: how kind!
Dianne: aren't I, though?
curi: so anyway, if you two were friends, who didn't date, you might fall in love, right?
Dianne: I guess
curi: so what's the point of dating?
Dianne: how else would i meet my soul mate?
curi: you think going out with one person at a time, who you pick by who asks you, is a good way to find a soul mate?
Dianne: Joe, help!
Joe: *punches curi*
curi: *falls over*