Yes, good questions - is this an IgM or IgG test?
When was your most recent possible exposure?
If this is an IgM test, that's a terrible test. It's unreliable and shouldn't be done on anyone but newborns.
https://www.kevinmd.com/blog/2013/07/order-herpes-igm-blood-test.html
https://drjengunter.com/2013/06/17/igm-blood-test-for-herpes-just-say-no/
https://www.statnews.com/2017/01/26/flawed-herpes-testing-leads-to-false-positives/
The CDC also recommends against it, as does pretty much every expert in the field.
If it's an IgG, that's a really low positive. It could be a false positive, which you can confirm with another test 12 weeks from your most recent exposure, or with a Western Blot if it's been 12 weeks.
If you've had a recent exposure - within maybe 6 weeks - your numbers could be rising, but it could also still be a false positive. You could test again at 12 weeks.
The CDC and every single expert in the field believes that a result under a 3.5 needs to be confirmed. At 1.67, you probably have around an 80% chance of this being a false positive if this is a 12 week test.
What led you to test? Did you have symptoms? A known exposure to someone who has herpes? Was it a known exposure?
If you truly have it that would be recent infection. You would need confirmation test with western blot or to wait 8-12 weeks and retest. Anything under 2.5 needs confirmation. But with an IGG test. Does it say igg or igm? Igm I’m not a reliable test.