Blood Types, KOTOR

In KOTOR, there are different blood types. Humans, Elves, Dwarves, Half Elves, Half Dwarves, and Halflings roll a d10. 1=09, 2=W10, 3=W11 all the way to 9=W17. Zero is roll again. With Half Orcs and Half Dragons are C01 to 09, again, zero is roll again. What do blood types do did you ask? Well, two things. First, if you want to heal someone else in a level, if they have the same blood type as you, you heal +2, and if they have a blood type 1 or 2 away from you, it's +1. Now, the other thing has to do with Marriage. If you and the person you are dating get a 1, instead of not liking each other and never dating again, they cancel that date and you get to roll again! Yay!