Thanks to both of you guys for your help.
First, to zeroFantasy:
Concerning Atton, it's just weird. You say he's the easiest one to train. But I think I pissed him off too much or smth, even though I had a high influence on him. For an example, when I was a dark player, he got completely transformed facially, just like me. His influence side was almost to the max, in the dark side. I guess the next time I play, I'll concentrate a lot more on training them.
To Unabomber:
Alright, I now understand. I never played as a female. I should try that next time ...
Now that you mention the library I finally understand. I did meet him, but since he didn't join my party, and since he was just talking and talking, I didn't pay much attention to him. Afterwards he went to the main building in Dantooine. I remember.
Concerning the Handmaidden, I did beat her three times... she was impressed, etc etc. But now that you mention it, YES! I did have a higher influence on Visas, and of course she got jealous... That's why she was pissed at me... everything is clear now!
That's really great though ... I'm gonna be able to play the game again with a new purpose.
Thanks again for your help, guys.