Why does sophocles alert the audience to the romantic relationship between antigone and creon’s son in scene 1 of the play antigone?

This play has a tragic theme. In order to make the audience appreciate the tragedy at the end of the play, Sophocles shows the audience the romantic relationship so that they can see the eventual conflict of interest that happens towards the end of the play. 

explanation

old disney was more kid oriented as appose to new disney it's more teen oriented.i guess what i'm trying to say is new disney is way more mature and out there then old disney. for instance all you see in new disney is bf/gf drama and old disney it was nothing like that. kids are growing up and as coorpations like disney, nickolden etc they tend to follow what kids follow so they can have more views . therefore   they have inferred   that now days kids want to have relationships and stuff so that's what disney gives them.

the best practice

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hope this !