Yeah, but mutant, candy red blood? I figured you just had the usual red blood, a darker color, not that -- That, MUTANT color, do you humans really have that color as well? That would certainly explain a whole hell of a lot.
[Even Eridan doesn't really know why he's flipping the hell out so much about this. To those who knew them both, Karkat was his best bro when it came to romantic advice. Finding out he was hiding his blood color for the reason that it was the lowest of the low, it made him feel so ... So fucking angry, there were just no words.]