"Oh, I'm sure the Macrowave/Microwave interchange stabilized the polarity of the Portals, ensuring an equal footing of Time and Space. If it was a Reality based issue, than the items we'd exchanged would've already caused a significant problem in regards to distortion and dilation. You can probably use that magic-soaked Gem you gave me as a powerbank to help boost your return trip, too, whenever you want to go back. Or at the least, we could send a letter? You're the Princesses prized Student after all -- even if she's upset by this particular path you've set into motion, as long as you commit to it with your full chest, there'll be no shame behind the consequences."