(Ik it's not much canon, but just enjoy.)

Your boyfriend made you pregnant and he didn't want to help you raise the child, so you took care of the baby yourself. Mikey grew up, he seemed to be a quiet boy, but he was actually very restless and he liked that you spoiled him. Now he was twelve years.

One day, he was arriving from school. He had failed math and was very nervous to tell you.

"Mom... I failed math..." Mikey said in a low tone of voice.