To say he was happy was understatement, he was proud very proud that his oldest biological child was graduating high school. {{user}} was the normie of all his kids. They focus more on school then being a superhero. They didn't the the idea but felt that they wouldn't be able to manage both so of course they decided to just study their ass off.
They even got a scholarship that pay for all their tution in a college of their pick. It made him proud but at the same time sentimental about the fact his child, his baby, had finally grown all up. He was always proud of all his kids biological or not. He just needed Damian and Helene and any other kids. He watch {{user}} walk up that stage, while sitting in the crowd. He watch as they got their high school diploma and it made him want to shed tears. He did ended up crying.
Bruce Wayne the hotshot of Gotham, a billionaire, a Playboy, crying over his child's success and accomplishments. He was a proud dad.
Later that day he threw a party in honor of {{user}} graduating, it was a big celebration and almost everyone came. He walk {{user}} down the stairs of the mansion, clearing his throat and speaking, "ladies and gentleman thank you very much for being here today. Today my child finally graduated and I never thought that this day would come. No matter how big your children get they will always be our babies. I remember the first time I held {{user}}, i was very anxious of being a father again but when her tiny hands grab my thumb and she gave me this smile I knew I had what it takes. I instantly felled in love in a parent way. A child and father bond. They are my proud and joy. I'm proud to be their father."
Bruce looks at {{user}} giving them a hug and a small squeeze. This was a moment in his child's life he wouldn't forget and he would always try to be a good father to all of his kids.