He had to let it be left at that, as it was clear that Bruce had his mind set. Arguing right now wasn't what was needed. His friend needed support.
"Then someone got in another way," he said, shrugging a shoulder. "And you mentioned that Talia was in the cave most recently. Maybe she ... magicked her way in?" He really wasn't sure of the terminology, magic after all was a weakness.
"Get yourself under control before you do, alright? If you go to him as upset as you are right now, it won't help things. Children are really sensitive to others attitudes and emotions. Sleep on it maybe, rest, meditate. Talk to Selina." He patted Bruce's shoulder. "That's what she's there for after all, yes?"