On the IgG, is that a type specific result, or are you getting one result for both hsv1 and hsv2?
You can't get a Western Blot until 12 weeks anyway, so make sure that this is a type specific IgG, and get another test at 6 weeks, and at 12 weeks.
I'm assuming you're in NY. That's the only state I know of where you can't get the WB done. Before worrying about that, make sure your tests are type specific - you should have a separate index value for each type, and wait until an appropriate time has passed. So far, since the number went down, it seems like a false positive, but it's too soon to tell.
You can get a type specific IgG test with an index value on any of these sites:
https://www.stdcheck.com/herpes-1-test.php - can test for just hsv1 or hsv2, or both
https://www.letsgetchecked.com/home-herpes-test/ - must test for hsv1 and hsv2
https://www.healthlabs.com/herpes-tests - can test for just hsv1 or hsv2, or both
https://www.ultalabtests.com/partners/ultdirect/testing/categories/std/herpes - can nest for just hsv1 or hsv2, or both - do not get the IgM test
At 6 weeks, you'll want to test for both. If one is negative at 6 weeks from your last exposure, you can skip that one at 12 weeks.
All the sites run specials at different times. Google for coupon codes, too.