why do I love you again?

Silently creeping through the dark flat, the stealthy killer slunk undetected across the living room through the windows, eyes trained on his destination, he froze with horror as the front door opened. A girl with light red-brown hair and freckles stared at him in surprise with her large baby-blue eyes before glaring at him;
"For Pete's sake, she gave you a front door key for a reason Kane, one of these day's me or her are gonna kill you if you keep this up" He smiled back impishly asking her where the fun in that would be, she ignored him and headed for the bathroom. He crept onwards to his destination, a little more confident that she would now dismiss any accidental noise for her flatmate. Easing the door open he leant over the sleeping young woman hugging her pillow in slumber, he grinned to himself muttering in defeat;
"Checkmate" He was frozen as the supposedly "sleeping" girl pulled out a gun and pointed it towards his crotch.
"I believe I should be saying that" she muttered sleepily and annoyed.
"I swear to god Kane if I hadn't heard Larta beforehand I would have shot"
"Well I'm just glad your desire for self preservation has risen to that height" he nodded to himself, honestly happy she at least cared about living enough to fend of burglars. She hid the handgun somewhere asking him what he was doing here.
"I lost the keys to my apartment" he confessed bluntly, deciding to get straight to the point. Even without the lights he could tell she was raising an eyebrow at him.
"So move over I'm sleepy" He ordered pulling the blanket aside for him, despite his girlfriend's protests.
"Don't you think I should have some say in this? I mean really Kane, as least ask" She said pulling the blankets back angrily. Kane stood there awkwardly; he'd never had to ASK for anything before, and besides...wasn't sharing a bed "normal" for couples? Admittedly both parties were completely new to the concept of "love" let alone "relationship". Finally after was felt like an hour Kane sighed and swallowed his pride;
"Do you mind if I sleep with you tonight"? He waited for another seeming hour before Ada mumbled something unintelligible and he realised her breathing was slow and deep like someone in deep sleep. Kane cursed a lot in Japanese and frustration getting undressed and sliding in next to his girlfriend wondering just why he actually liked her again. As he rested his head on a salvaged pillow Ada turned around in her sleep and hugged Kane tight like one of her many pillows, her deep vanilla scented breath brushing against his chest as her light eyelashes brushed his neck, she mumbled something else undecipherable and Kane thought;
"Ah, that's why I love her..."