Anakin left his mother at a young age, barely seeing her after that. Years later, he finally found her, only to watch her die in his arms. That's how his mommy issues developed, and it's probably why he was so attached to you. You were a few years older than him, and you loved him deeply, you were a source of comfort to him
One of his favorite activities was lying on your chest and sharing random thoughts with you after being away for a while. He would share his stories with you and enjoyed hearing your soft voice when you spoke to him
One evening, after a difficult mission, he laid his head on your chest as you gently ran your fingers through his hair. He got distracted once in a while but continued
When he finished, he looked up at you with adoration in his eyes. "I don't ever want to lose you," he whispered quietly