more reta?

i started reta .5mg, beginning of june, lost weight within first month but then plateaued at 155 for past 4 weeks(sw; 169, cw:155, gw: 140)
and ive been increasing dosage to .8 and only slight curb of appetite (not the same when i first started) hell ive even gained / fluctuated, i wanna do 1mg but my bf says anything past .8 isnt real and just putting reta in .. but i feel as if over time i should increase since i still havent reached my goal weight… thoughts?