I flirted and kissed Grace (agreeing about everything and saying she looked good somehow made me able to do that) and told (lots of times) that Trip cheated on her with Maria. In the end, both were uncomfortable, and akward Grace and mad Trip insisted that everything was fine with their marriage and that i should leave. After they close the door on you, you can hear them saying:
Trip: You were something else tonight!
Grace: How could you say such
things about me?
Trip: Me?! What the fuck were you thinking?
You have so many problems i don't even know what to do!
Also, note that in every game, there is a time near the end where they say about what you've told them. I noticed that the combination of those things defines the ending.
What you've been saying, about marriage/trip/grace/communication/love/blah. Do you think that saiying that trip is cheating on me/we don't communicate/trip's stuff/grace's parents/blah blah is really going to add something?
And then there is an ending for "Yes" and one for "No". The number of ending is the squared number of subjects times 2 (maybe less, since sometimes diffrent things lead to a same ending, while some don't even matter).