I get wet he kisses me or hugs me or just touches me up but I can't seem to get horny at all

Try waiting until you are no longer a teen.

I don't want to have sex atm all I want to know is why ? And I had fgm done when I was littol so could that be why ? I just really need someone to answer that for me because I'm scared to go to my doctor he lives next door to me so it will be awkwaaaard

Usually its because your not into your partner. You may get wet, and of course your hormones will be racing do to that fact that your touching each others body but if your mind doesn't let you get horny, then it's your partner that your not attracted to.

Usually you are just not ready. As noted, stop doing these things till you are.