Try to seduce him

You force a lustful smile as you touch his hand. "A man of your... unique charm must be lonely in this tower... maybe you can help me and I can help you, we both win..." you say, looking at his eyes.

The wizard is confused, maybe flattered, maybe angry... It's impossible to know.

He arches an eyebrow, swirling his wine. "Well, does my face offend you? or does some twisted part of you actually enjoy this tragic nose and proportions?"

This is hard...
If you tell him the truth, he can be offended, but you can find the right words without lying.
If you lie to him, saying that you like him and you don't care about others' opinions, you can work on his ego.

Both options have their risks.