Is he gay? Or like what.

My ex and I started getting "close" again. We haven't established anything serious but I go to his house and spend nights there frequently. We lay in the same bed too. The issue is he won't even touch me. Like hellooo what are you waiting for. And then when I asked him what his issue was he said "he's just had a lot going on" (which is bullshit cause he has nothing serious going on to where he doesn't want sex.). And when we finally got to do it, he literally laid in his back and made me ride for The entire time. The next time we did it on the side and he was so off beat and boring and it's just been awful. Should I mention it to him about what going on with the sex or should i just leave him as an ex.