What can I do to make myself eat it?
This is quite common. The loss of desire to eat your semen once you ejaculate goes along with the post-ejaculation loss of interest in sex in general. I don't think there's anything you can do to "make" yourself eat it. You could, of course, save your semen from the previous ejaculation and warm it in the microwave! (Whatever you do, though, don't keep it in the refrigerator in a container marked "non-dairy creamer"!)
After seeing this question, a reader wrote in another suggestion – to position yourself so your semen drops directly into your mouth when you ejaculate.
