So my bf came over a couple weeks ago and we were messing around and he kept trying to get me to cum but i didn't. Like iI would get to the point where i felt like i was about to and nothing would happen. Does this mean i can't cum at all? Nothing sexual has happened since then. He feels like he cant please me which I wrong and I told him that and then I feel like I'm disappointing him because I can't cum. I was relaxed and everything. Someone help please.