Hii...I M Sexually Active With My Boy Friend Since Last3.5

Hii...I m sexually active with my boy friend since last3.5 months.. Recently I got aborted also..but now he saying dat he is a homosexual ..I asked him den how can u participate with me in sex ..he said den I m bisexual..but he is too active in sex with me...I don't know what to do..I want to consult aa doctor for him ...I don't know which specialist should I consult