Ollie and Dinah have decades upon decades of backstory, and Ollie's spent the past year or so trying to win back her respect, with Dinah seriously wondering if he's a changed man more than once in Birds of Prey,
her own series.
Ororo and T'Challa had about one issue of possible flirtation decades upon decades ago, and everything else was retconned and then forced into a hasty, unconvincing "relationship" that fans of both characters hated and rightly cited as a blatant ploy get two prominent black characters to fck the hell out of each other.
Wait, what's that? The sound of me being right yet
again?