"I always get asked", the Australian said.
Last fall, Yastremska won her first title in Hong Kong.
After clinching the first set against Zidansek on Saturday Tomljanovic darted ahead 4-0 in the second with the help of a powerful backhand victor during a long rally in the fourth game.
The No. 47-ranked Yastremska was just two points from defeat at deuce in the final set but fought to turn things around and won the match in two hours and 22 minutes. She wanted to win.
But despite the advice warning not to cry from Serena, Yastremska could not hide her emotions upon her win.
Tomljanovic finally put herself on the scoreboard in the next game at 1-5.
She then failed to congratulate Yastremska in her runner-up speech.
Instead, she briefly clasped her opposition's hand near her own chair and quickly packing up her gear before grimacing next to Yastremska on the podium.
Yastremska called for trainer to treat her left leg and cut down her errors when play resumed, reeling off four straight games to lead 6-5.
In the tie-break, Yastremska was in full charge with deep groundstrokes.
Tomljanovic: "Every player is supposed to ask a player... I have to thank it before I leave", she added.
Yastremska is improving step-by-step; it is no coincidence that since 2018, her improvements have been visible nearly at every tournament, especially in the indoor season previous year. The pair needed to tiebreaks in a three-set epic, before Konta won 7-6 (4) 2-6 7-6 (7) in Melbourne.