Jizz is gross. The smaller the load, the better. I know men hate hearing that, but...
I don't think it's that gross, but I agree that men hate hearing it when some of us say we're not that into their cum, and how much they can cum. I think they're more fascinated with it than we are--they've been masturbating since they were teens and semen is a sign of virility.
I've never had a boyfriend ejaculate on my face or body, but I have seen a few masturbate, and the ejaculate quantity varies. And it's not like I became a crazed nympho when I saw a lot come out.
Unfortunately, some men feel they have to keep up with the guys who make porn films, and use them as their role models for sex.
Personally, I prefer him to ejaculate inside of me, and if everything goes right, we can orgasm at the same time. I love the sensation when he's just about to lose control, and at the point of no return. His breathing becomes heavier and heavier, his face has that look of ecstasy, he starts bucking faster and faster, and then his cock starts twitching and pumping out the load. And while he's ejaculating he keeps moving until he can't go any further.
The feeling of the penis going soft inside of me is nice, too.