For Ella and him, he was handling their delicate situation the right way.
If Ella starts to act aggressively and continue stalking him and try to force herself on him, then has no choice but to do the drastic measure, which is something he doesn't want to do in the first place.
He decided to keep this matter a secret to Catherine because no woman in her right mind would ever allow their boyfriend to watch a sexy woman dancing provocatively inside a room for thirty minutes straight. Catherine would never understand his logic, so it's better to keep it this way. Anyways, after one more challenge, it will be over and their life will all turn to normal. All he needs to do is to make sure he won't be tempted by Ella's alluring seduction.
