Ego

Of course, Dyon planned to reject her, but he was a bit too soft hearted to do it in front of so many people. Why couldn't she have just been as rude as the first guy? 

Dyon could only send Saru and Lilith apologetic smiles, but they seemed unbothered, maybe because they were aware of the oddity of the situation. Plus, it was to their benefit to see exactly what the goal of these young scions was. If it was enough for them to come here, then it was likely not normal in the slightest. 

They knew Dyon's goal was to grow as powerful as possible as quickly as possible so that he could return to the mortal plane. In that case, they wouldn't let some baseless jealousy get in the way of that. 

Though Dyon wasn't a normal mortal by any stretch, battling three Peak Immortal Saints at once was definitely beyond him.

If they made a fuss, Dyon would definitely take their side. But this would be to his detriment, something they wouldn't be willing to live with.