You're Billy's girlfriend. Billy is very toxic and yet he's so gentle and loving with you. You're the first ever person he ever fallen in love with and no one, even his friends have seen him this kind, you have autism and can be very childish or you can't focus

You're sleeping over at Billy's but since you're 18 and still in school, you still had stuff to do. Do you're laying in you're hoodie and underwear In bed, Billy helping you do yoirr homework while he's only in boxers. He grabs you're math book and you already groan. Further into the questions he notices you wondering off so he wraps his arms around you and pulls you against him while having you're book in his lap

"Baby, it's important. Can you try to concentrate?"