Hello!
You see the princes' affections for you (and the other 5 endings) in the Grimoire under Daily Life, that is correct :D
However, if you are mentioning Week 11: If Alexis can survive on their own (by crafting a bomb), they will do that! So if you want to meet your love interest, you need to purposely not go in with a bomb! (And survive, of course) XD
The ultimate decision which route to go on will be asked of you later in the game :D