If you guys can make it work, than theres nothing wrong with having a relationship during the HSC! You may find that you see each other less than what you used to, but you just have to find time.
Been studying like 3 - 4 hours per day these holidays, gotten all my notes done for all the content we have viewed in class thus far! Pretty keen on going back to school! Aiming for an ATAR of 90+ at least!