Oliver did notice that Theseus didn't specify which business he planned to quit, but he was a bit too busy eating to really give that an adequate reply. The chocolate thing really was magical. Oliver wouldn't really compare Theseus cooking skills to his sex skills, because the two seemed rather far away from each other, even if in Oliver's actual experience they tended to be very much linked. Still, whilst Oliver wouldn't suggest Theseus gives up either, because he enjoyed the food greatly, for business it was probably better to keep the cooking. Even if Oliver did think that Theseus could make a great deal of money through sex.
At Theseus question, Oliver had to laugh. "I don't break anyone's hearts," he told his friend assuredly. Oliver didn't, either. Sure, his own heart did ache for Charlie, but that had become such a constant in Oliver's life that he sometimes forgot about it altogether. Like it just felt natural to be in love with Charlie, so Oliver didn't question it. "Besides," he said instead, spooning some more chocolate goo up. "You're the one who fancies himself in love with half the world," Oliver said pointedly. "So maybe I should be asking whose hearts you're breaking," he added, but more as a comment than a question.
After a moment, Oliver shrugged. "Everything's fine, I guess? Quidditch busy, as per usual, but that's about it?" Oliver said thoughtfully before his eyes widened. "Oh, I might make Captain once the season's over," he told Theseus. Oliver did know that Theseus didn't really care for Quidditch, but he was sure that even someone who knew next to nothing about Quidditch could appreciate what an achievement making the Captain of a team was.