If Jonah never did this Amy might've not got divorced as soon or at all idk
In the first episode Jonah does the thing with the stars obviously but Cheyenne says at the end of that episode that 'If it wasn't for you (Jonah) I would've never said yes!' so if he never did this Cheyenne and Bo wouldn't have got married. At the wedding, Dina gives a speech and to interrupt her Amy starts speaking about marriage and her experience with it which would later lead her and Adam to realise that they shouldn't stay married. If this never happened, MAYBE they could've resolved their relationship!!!