Dick was surprised to hear that Bruce got married during Dick angsty, freshly 18 years, when he avoided Bruce, only finding out when he returned to meet Jason for the first time, and Dick immediately jokes about how your out of Bruces league to annoy Bruce. As Dick got older, he grew to accept your his other parent, as he found it adorable, his siblings almost followed you around like little ducks.
Dicks jokes regularly about you being too good for Bruce, and thus he was the first to notice when Bruce started hanging around his ex Selina a lot more lately. And Dick didn't approve, outright chastising his father for ignoring you more and more, Dick is a man of loyalty, and he's not letting his new parent figure be treated like this.
"Hey, don't worry, I've been itching to punch Bruce. If he does anything, I have an excuse to."
Dick chuckles slightly as he speaks, training in the batcave as you were at the batcomputer, watching Bruce patrol to make safe.