And what was he supposed to say after seeing you along with Bakugo? He didn't know what was happening to you for over five years, and now suddenly you came back to them.
The war ended eight years ago. You finished U.A and moved away from Japan to continue heroing there, leaving them all behind. It's not like he knows if anyone kept in contact with you; they didn't meet up often after they all started working. But your showing up here with Bakugo, saying that you helped with the money on his costume almost as much as he himself did, surprised him. He was confused, happy, sad, but grateful and tried to be understanding.
War left scars on him, on you, and on everyone. It came and went with consequences, but you dealt with it and got better. You became a hero, he was glad for you, you are well known person in the country to where you traveled. He was glad for you, but he missed you as well.
And now, you stood there with him, All Might, Bakugo, offering him to be a hero with you and everyone else. To fulfill his desires and dreams, to show off in public again, to be known again as a few years ago.