1. Parties outside the campus, since Bianca is not a student.
2. It depends how much you drink. Alcohol addicted people and bum alcoholics are not the same.
3. So, you suppose Jill's father would miss her recital? And her mom Amelia would come to her daughter recital with Bianca's father? What's the sense?
4. It doesn't seem like a help to me. MC did a great job himself, no matter which dialog option he chose. This dude is tipsy and reacts accordingly. He has no idea who MC is, because he sees him for the first time. The scenes after that are just dialogues, he doesn't distract anyone.
1. a weak argument from you. The Halloween party is on campus and the concert is also on campus.
2, I have no idea what a "bum alcoholic" is supposed to be. But I know alcoholics and Geoff doesn't act like one. Yes Geoff is tipsy, but it happens to me after just one glass of champagne. I can't handle the stuff. I very seldom drink alcohol and therefore have to restrain myself. Furthermore, Christian mentions in relation to Geoff so that the tolerance towards alcohol decreases with age and not so that Geoff has drunk too much. Geoff is simply someone who cannot tolerate alcohol.
3. you forget so that Bianca is also at the concert so that Jill and Bianca's families know each other. Geoff attends her friend Jill's concert with his daughter Bianca. Amelia attends the concert because of her daughter Jill. What doesn't make sense about this? What if Jill's father just didn't have time to go to her concert or it's too painful for him? We know so Jill wants to campaign for Lana.
4. Geoff doesn't help the MC?
You forget, so Derek and the MC broke into the mansion. First Geoff says in the presence of the MC so that he is also a student without a jacket, just like Lucas. Christian of course knows so that the MC is not a preps and asks questions. When the MC is honest and says he is a student, Geoff says so the MC must be an honored guest. The MC says to Christian so he knows more about this place. For example, why there are so many Italian paintings in the Preps Mansion. The MC himself does not know, but he has noticed. By the way, you can click on the picture in the hallway of the 2nd floor. Geoff supports the MC by explicitly mentioning the painting from Florence. He supports the MC to stop the question of Christian and Gordon. Christian himself says in EP8 to the MC so that he grilled him quite a bit in front of Geoff, that is, he put the MC on the spot with his questions. Ergo, Geoff helped the MC. The question is whether Geoff did this consciously or unconsciously.
5. Geralt From Rivia mentioned, so that the behavior of Geoff is rather untypical for the Royce. Amelia is not like that and neither is Jill. But the behavior of Bianca matches the behavior of Geoff, as you can see and read at the Halloween party when the MC greets Jill.
Also, we should keep in mind so Amelia Royce is not at the preps party in EP5. So if Geoff was supposed to be Jill's father, why is Amelia there? Did Jill just let her mother know so she wouldn't be at the party? Then why didn't Amelia tell her supposed husband Geoff?
There is more evidence against Geoff being Jill's father than there is for it.