Help Me Out Here

i feel i have to write this out. to sort this out. to clear my thoughts and try and move on from this.
i was just starting to get used to this friend of a friend. (it takes me time to try to understand people and want to spend time with them).
i was almost there today but, you know that saying "spoke to soon"? well, apparently, i thought too soon. i thought:
"today is a good day with this guy. i'm starting to get to know him and understand why he is friends with these girls. he seems okay". and then...

we were sitting at the diner table, having, in my opinion, the best diner conversation we have ever had and then he spoke. out of turn, out of line, in offense.

"i have trouble remembering names. when i was in africa i gave up 'cause everybody looks the same. all the africans looked the same."

i haven't decided if i'm in the right about being upset by this comment (which by the way, continued much further than this).

but, my question to self is, why am i so upset?
is it his ignorance?
why should i be upset that someone is ignorant???isn't it their problem and not mine?

the most accurate explanation i can give is that it upsets me beyond the surface problem of me thinking he is a moron. what i am really upset about right now is that someone who knows and has the same religious values as i could think this way. but i shouldn't be surprised. we all have a different set of life experiences. what affects me will not affect others the same way. we don't all get the same message from the same lecture, so why would it be different with religion, which we take upon ourselves to learn and live?

so, i guess the next step is to move on in a mature way. forgetting the feelings of the "i never want to look you square in the eye again" and "you no longer exist to me" and the ever present "how do i drop kick him in the face and not get in trouble at all "these are not the answer. right??

so what should i do? yes, you who ever you are reading this, what should i do?
what would you do? honestly.

thanks for listening. hope you've had better.