So your man's jizz makes ya sick, huh?  Just the mere sight of his warm, gelatinous off-white gob turns your stomach? It's a prob, alright, but not one without a solution. Rather, two solutions. Maybe even three...

Solution One: Resign yourself to the fact that you and semen will never be friends, but neither of you is going anywhere. And so,  you need to make this work. You don't have to be all buddy buddy, but you'll both be hanging out in the same place so long as you are sexually active with men. You and cum should treat each other like two adults who don't care for each other,but understated the need to tolerate each other. Like mom and step-mom.  Be respectful, cordial, don't cause a scene, avert your eyes or attention when possible and suck it up when you're face to face.

Solution Two: Actually suck it up. Exposure. Sometimes med students love the idea of being a doctor, but are squeamish about blood or guts or human shit or needles. Through knowing that these things they find ick are part and parcel of the bigger picture, and through constant exposure they learn to desensitize themselves to them. The first time they stick their hands into a man's ass and pull out an 8 inch festering hemorrhoid they, like you, will "gag" and "stomach churn" but eventually they get used to it. So too, through exposure and even study of semen, you may begin breaking down the barrier, and making it a non issue.

Solution Three: If neither solution One or Two is appetizing see if you are actually allergic to the stuff. I ain't no doctor, but there is probably some stuff in there that is, like, allergicable. If you can tolerate some and not other jazz piles, perhaps it's worth investigating the diet of the jizzer? Or the jizzer himself.