ihaveaheadache

The MC was a girl with dark hair who was addicted to her phone then her phone turned into a human. (I think the phone was given to her by her dead mother) The now human phone is trying to help her fulfill some of her goals like getting good grades. One of the goals was to get surgery. The human phone and the MC don’t end up together and have more of a sibling relationship. Because the MC had a different boy as her crush or boyfriend or whatever. The phone does turn into an actual human in the end I think. Idk it’s kinda weird but I would appreciate if anyone knows this manhwa

There was a historical manhwa like 2 years ago or something it was popular (not completely sure about the date) the FL was very lucky when it came to money her family was rich because of her luck with money but she was very unlucky with love. She had a stereotypical bad guy as her boyfriend/fiance basically the dude was only with her for money and was also cheating on her. So she made a deal with the ML who is a scary Duke of the north as everyone sees but he is actually a big teddy bear. There was also a girl he was forcefully engaged to and had a abusive mother I think. Does anyone know this manhwa?? If it helps the FL had blond hair and the ML had black (stereotypical duke of the north look)