This is much better with her emoting. Her straightforwardness makes it so cute. Like of course she'd confess as soon as she realizes it.
Also, my guy, please DO get that piece crap you mistakenly call a mother out of your life. There's not a reality where that type of treatment towards one's son is tolerable. She lost her husband, big whoop. A child lost his father and then on top of that had to take care of his terminally I'll grandmother because the adult mother in his life couldn't be bothered. It doesn't even seem him his mom "raised" him after the father died, so much as kept him alive. Emotional neglect is a form of abuse. Scientists have literally done studies with animals to see just how much it can mess a living being up. Being an apologist for the mother in that situation isn't being a positive kind hearted person, it's just not healthy. Like please go to therapy. The MC should be the one pushing her out of his life. He would've never been a shut in if he wasn't put in a situation of taking care of his grandma following his dad's death. There's so many different ways to hypothesize how traumatizing that combination would be to a minor. Especially one without the love and support of their only parent left.