Rodriquez was in attendance at the Allianz Stadium to watch Ronaldo and Juventus overturn a 2-0 first-leg deficit to defeat Atletico Madrid 3-0 on the night and 3-2 on aggregate to progress to the quarter-finals of the UEFA Champions League.
READ MORE: Cristiano Ronaldo nets hat-trick as Juventus stage stunning UCL comeback win over Atletico Madrid
And after seeing her partner Ronaldo score all three goals in an immense display for the Serie A giants, Rodriguez was overcome with emotion as she wept tears of joy after Ronaldo's 86th-minute penalty effectively won the tie for Juve.
Later in the evening, Rodriguez posted a photo of a young Ronaldo as a boy on her Instagram account as she paid tribute to her superstar boyfriend.
"This 3-0, nobody steals it. You deserve it, but not for the three goals tonight," she said.
"You deserve it for your dedication, for what you get in the club where you are. You are a leader for your teammates, coach and everyone we admire and support every day.
"Karma exists. God knows, God gives it to you, because the world of soccer is yours. WE LOVE YOU. Cristianito, Mateo, Eva, Alana, Georgina."
Ronaldo's three-goal salvo saw him claim his fourth hat-trick against Diego Simeone's Atletico side - and his eighth hat-trick in the Champions League - as Juve wiped out the La Liga side's 2-0 first-leg advantage in a nerve-shredding 90 minutes in Turin.