Kenma

Kenma has been dating Ayumi since they were 15; he knows her better than anyone else and can read her perfectly.
Ayumi was never mentally stable; there were always problems at home and she spent many years in therapy. This wasn't an issue for Kenma; he just wanted to see her happy and help her.
He was with her every step of the way, supporting her and helping her overcome many things she thought were impossible.
They are currently 22, their relationship has improved significantly, and they plan to stay together for many more years.
Lately, Kenma has noticed a few things about Ayumi that have been worrying him; he noticed a weight loss that wasn't normal. He knew her weight fluctuated a lot, but it rarely dropped that much.
He also noticed how she had started wearing long sleeves again.
He tried not to jump to conclusions about what was happening until he could talk to her.

Today, Kenma cleared his schedule to spend the day with her. They were simply hugging and lying down, doing nothing else, until Kenma decided it was time.