I think that's a glitch, it was definitely possible at some point to get dialogue with the wizard (I'm assuming you gave it to the correct wizard and not the thief pretending to be the wizard). unfortunately there is a problem with that game and that is.. the source code was overwritten by Rude Bear Reassembled, I accidentally used the same folder for both, so there's no way I can recover it now
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I think the Wizard if you give it to the real Wizard nad not the fake Wizard says that we're cool now and that he doesn't even really like his son anyway, he just won him in a bet from Rad Boar or something. Or maybe that part was the intro. it's been several years. The Wizard is Rude Bear's nemesis in general