No worries -- your test is negative. Any value below 0.9 is negative; there is no difference between results of say 0.1, 0.4, and yours of 0.87. The higher number does not indicate "a little bit" of HSV2 antibody. In fact, if the same specimen were tested 10 times with 10 different test kits, it would give 10 different numbers which could vary anywhere between 0.10 and 0.90.
So unless you have an especially high suspicion of herpes (e.g., typical symptoms), I recommend you not spend any money on additional testing.
I hope this has helped. Best wishes.
So I should not be worried that my test the year before was at .12?
Nothing to worry about. Re-read my reply above.