I actually have the same usual tendency, I crave it until I ejaculate and then it goes away. I eat it about once every five times or so, and only when it has been a while since my last jerk off. If I wait it seems to taste sweater, if I eat it after I just did, like in an hour or so, it taste pretty tangy.
I had a girlfriend that kissed me with my cum all over her, that was the first time I was like that's not bad. Still don't know how the girls in porn can handle like ten loads at a time- that's like noway!!!! But then I ate my girlfriend out one night late, after I had come in her right before bed, that did it for me, I was actually not even thinking about it, I just always went down on her before I fucked her. Once you get used to it, it opens up the doors - you never have to not kiss your girl or not go down on her, if she is good with her juices and you are good with yours, then its like whatever whenever.