my taurus boyfriend stopped putting efforts in bed

so my taurus bf in the begining of the relationship used to make sure i came too while we doo the thing.. but now he completely stopped putting the efforts he wouldnt even touch my place down their even when i beg him too... i dont know what happened to him now.. we just have sex i do it for him and then we sleep.. it makes me truly sad i tried talking w him about this several times hut he always gives me reasons..