i dunno if it's just me but I noticed certain parallels between Cersei and Dany this season.
Cersei invites Euron Greyjoy to King's Landing, but as Jaime points out, it's like, all the Greyjoys.
Dany invites Jon to Dragonstone, but it's just one ship with him, Davos & some bannermen.
Euron is there because he wants to marry Cersei and be King, he makes that very clear. Meanwhile, Cersei just wants an ally. Euron tries to take a step towards Cersei and the mountain takes a step towards him. Euron leaves.
Jon is there because he needs Dany's help, meanwhile Dany just wants another ally. Jon tries to take a step towards Dany, but the Dothraki take 2 steps towards him. Dany walks towards him.
The next time Cersei sees Euron, he brings her a "gift" in order to win his heart's desire. To be king.
The next time Dany sees Jon, she gives him a "gift" of passageway to mine the dragonglass. It's looking like she did so for him to give her her heart's desire: bend the knee?