I love the DCSHG show for providing a rivalry between Ollie and Zee, because imagine if that carried over to main canon. Or at least they start out as rivals but probably get over it as adults. Because imagine how that affects their dynamics with Dinah.
Dinah: Ollie is just so cute, and can be really sensitive under all that bluster.
Zatanna: ... Queen? Oliver Queen? Green tights wearing Oliver queen? Bad mustache Queen? Him??? Seriously Dinah????
Dinah: Yeah Zatanna is just one of my closest friends, I respect her so much.
Oliver: .... Zatara? Zee Zatara? Fishnets wearing Zatanna Zatara? Bad bangs Zatara? Her??? Seriously????
(Them all together at dinner)
Both: *Instant bickering*