The big question

So.. in the past times I’ve had sex, after finishing they would ask “did you cum?” And I HATE the fact that I tell them no. It has nothing to do with the sex. The sex is amazing. But I feel like I’m hurting their ego when I tell them I didn’t finish.. One guy stopped talking to me all together because of it.. 😪 I mean I think I’m doing the right thing by telling the truth.. But I hate the look they give me when I tell them I didn’t. So my question is: Does your partner have to cum for you to know that they were satisfied? Cause I enjoy the sex, but I just never seem to cum.