Reputable tattoo places should show you the needles in sealed packs before they start, did you see that?

I would make some serious enquiries to my partner if I were you. Regardless of whether they've given you anything, they need to know so they can get tested, but also I'd be asking if they wanted to tell me if something was going on.

It's not nice news though, might take a while to hit, but take care of yourself and make sure you deal with the emotional side of all this too.