Do you have a hepa profile? Like HBsAg, Anti-Hbs, Anti HBc IgG/ Igm? Sorry but this is too little information to make a statement. Did you have a Hepa B vaccination for the last 6 mos?
2.09 is super low and about to get negative, what is the unit s/n, s/co or iu/ml?
how long do you have hbsag reactive?and did you check all markers to see if it is active/inactive, cronic/acute?
the tests are: hbsag,hbsb, hbcab Igm, hbe,hbeab, hbvdna pcr, alt/ast, all these tests are necessary to understand what type of hepatitis you have and if you just got infected and developping acute or clearing a cronic hepatitis
since clearing cronic is very very rare you are probably clearing an acute hepatitis or about to develop an acute hepatitis, in the second case immune globulins plus vaccine maybe can help, in the first case jsut monitor