Time to Retaliate
Even though Michael accepted that he had to talk to his mother at some point, whether it was for his brother's sake or to get the answers he had to find out after their parents abandoned both their sons, it was not like he was willing to talk to his mother right away.
Michael was not willing to take the first step anytime soon. He wanted to see how she was going to behave in the next few weeks and if she was going to leave him for good yet again shortly after she realized Michael was not going to listen to her.
He entered the spaceship, went straight to the room with his room number and manifested the Runic Gate to transfer his anchor to the spaceship.