That is what Armaan had screamed at Ridhima right after he had found out about SR's marriage. Now, that can be taken in two ways when it concerns Armaan. First, the obvious, that he literally cannot do without her. Like he used to keep saying, "Armaan aur Ridhima, do naam jo kabhi alag hi nahi ho sakte the". Second, that everything that he does eventually comes back to Ridhima. Whether it be anything, somehow it is always related to Ridhima.
And that's why, today again, when Ridhima was about to trip, he instinctively reached out to hold and protect her. Forgetting that she was married and someone else's wife. His habit of starting and ending at Ridhima is what Armaan truly meant when he had screamed that dialogue.
Even in the precap, the creatives decided to make him speak about everyone's situation. Because as usual, Armaan's thoughts and feelings are conveniently forgotten. Maybe because it has ALWAYS been the same when it comes to him - That he loves Basket!