I love the Book of Jonah. It truly "Shows" that GOD loves [[ALL]] of His Creation:
וַֽאֲנִי֙ לֹ֣א אָח֔וּס עַל־נִינְוֵ֖ה הָעִ֣יר הַגְּדוֹלָ֑ה אֲשֶׁ֣ר יֶשׁ־בָּ֡הּ הַרְבֵּה֩ מִֽשְׁתֵּים־עֶשְׂרֵ֨ה רִבּ֜וֹ אָדָ֗ם אֲשֶׁ֤ר לֹֽא־יָדַע֙ בֵּין־יְמִינ֣וֹ לִשְׂמֹאל֔וֹ וּבְהֵמָ֖ה רַבָּֽה׃
And should not I care about Nineveh, that great city, in which there are more than a hundred and twenty thousand persons who do not yet know their right hand from their left, and many animals as well!”
In the Tanakh, the "last Verse" in the Scroll of Jonah, shows God expressing even His Love for many ANIMALS that reside in Ninevah.
btw, knowing how God loves, God forgave Jonah!
The Old Testament is different than the New.
King David hated every Enemy and expressed specifically for God to murder them in ways so horrific it would make David feel better. And not each time David expressed his hatred, do we see him repenting.
and we know that God called David a man after His Own heart and built His lineage from David.
That was how the LAW worked and how God infrastructure'd Salvation.
But in the New Testament, it becomes about "LOVE Your Enemy."
No Doubt, Jonah, is in Heaven and we shall meet him.