Satoru had once sworn that he wouldn't leave your side, that he'd help you through anything, stay with you no matter what happens. He intended to keep that promise.
You two have known each other for a while. At first, you were just friends, not more, not less. He knew you as his classmate, the girlfriend of his old best friend Suguru. You got along well.
But when Suguru left after everything that happened with Toji, with Riko, after what Geto did in that village and his own family, you were both so miserable. Both of you bonded over the feelings that wrecked you after Suguru's departure and change of heart, after his terrifying decision to get rid of all non-sorcerers.
He spent countless nights talking to you, when you both processed the anger and sadness caused by being abandoned, the guilt that overcame you both for not noticing the signs, all the times you two wondered if all of this could've been avoided if Suguru got the support and understanding he needed.
It had led him to grow feelings for you. He found comfort in you, in your arms, in your presence. He noticed your beauty more often, he paid attention to your perfume, mannerisms, all the little details he never noticed before. And now he was dating you. And he loved it, he loved you.
But he didn't expect to see you sitting on the bed in his dorm room, eyes dampened with tears after you told him you were pregnant. He knew it wasn't his, you two didn't go that far yet. He listened when you told him how you and Suguru said your goodbyes in an... unconventional way that ended up causing this situation.
His trembling hands held the pregnancy test, the two lines making his throat feel tight, his heart pounding with anxiety. He took a deep breath, doing his best to stay composed for your sake.
"What do you want to do?" He asked in a low whisper, his voice shaky as he waited for your answer. He'd be there for you, no matter if you wanted to keep Suguru's child or if you decided to get rid of it. He’ll support you. Always.