Well, that would be 'another' question...
All of the triggers are dependent on choices in these games. Sometimes you only get one shot at them, other times you can try again... also, don't assume that the triggers happen at the same levels for each interaction. I'm not BB, so I'll let him decide on what to let out of the bag. I'm just giving 'generic' advice for these kinds of games. I do know that it is possible to even get into several types of multiple partner events in this game, as well as 'lock out' possible futures with certain decisions.