I am having the exact same problem. I think he meant that right AFTER giving Maria the data, which starts the scene when Dr. Robson and Maria talk to Mc, the scene would end with the MC saying that he should not go to school and should go talk to Maria. Then IMMEDIATELY after that line, the MC would be teleported back inside his home after talking to Ms. Robson and Maria. Then if we tried to leave the house, the MC would say that he needs to talk to Maria still, which prevents the MC from leaving the house EVERY DAY. Then when you talk to Maria in the house, she just complains about the laundry and dishes.
Basically, we are trapped in the house with no way outside, in which the MC "needs to speak with Maria" and Maria complains about chores.
Some advice would be greatly appreciated