I feel like he's probably gonna leave her soon to go back to the palace and both of them will miss each other hehez
Or he will invite her to go with him and Ar agree then she will see how different their worlds then she will downgrade herself due to seeing how different the both of them live, then the prince will choose between the crown or ar then few bullying from other nobles will happen and then some events will emerge that will lead ar to go back to the forest then boom they reconcile. These are the ussual routes in romance novels unless the author will surprise us with something new (=・ω・=)
Ngl it is slightly disappointing that romance novels have such a formula that it's supper easy to predict cause we're so used to it. I'm really hoping for something a bit different but with how wonderful this story is so far I think im okay with the predictable path either way
I guess we'll be expecting some heartbreaks in this series