Winterthorn
The dinner and Aldrin's experience sharing with his groupmates ended quite well. It's just him telling them how he achieved it. In hindsight, it's almost the same as how I would visualize their Concept. It's all about their imagination.
Anyway, the dinner should be perfect if not for Clark relentlessly harping for Irina to leave Aldrin's side.
But instead of doing that exactly, Irina stuck even closer to Aldrin just to annoy Clark.
Although he couldn't really be bothered by it, it's clearly a case of one side not wanting to give up and the other side already tired of the former's antics.
He already offered to help to make Clark understand that his attitude wouldn't lead to him wooing the girl. That should be enough. But tonight, he got dragged by them again.
That's why before he returned to his room, Irina was dragged by him this time to also offer the girl advice.