I can not find anything to raise his affection level, or is there even a way to raise it?

I was told the higher there affection level the more they critical hit when making a item so been trying to raise them all a bit.

NM found a link below that was a good site for this knowledge and appears as I feared you can not raise C2-N2s affection at all. I assume cause he's a droid and is programmed to like you always.

In that case his affection should be 10000

He is not listed as a proper companion uner the Consular class so I believe he has no affection items. He seems to crit more on making items than Qyzen though which makes me wonder if he just likes you anyway because your his new master.

Although I do have Qyzen up to 500 affection now and he is making some nice items for me.