When you were brought to Dream and Cross's place, Cross put you down and told Lux to look after you while he looked for Dream cus some shit happened(won't explain) and you kinda hid behind a table leg, which did make Lux upet.. but Star woke up and kept going over to you, no matter how far you pushed him back, eventually you gave up and let him be near you.
After a while, you rolled on the floor and Star went to sleep next to you.
That's part 1.