...Seems like it's the third time, right?
He met his girlfriend at the hospital. At that time, his girlfriend was accompanying her younger brother for an appointment, and he had a good impression of her; she seemed like a gentle and kind woman.
Later, he asked her out for dinner, they slowly got to know each other over time, and eventually confirmed their relationship.
He originally thought that this time it could end in happily ever after, but unexpectedly... he got dumped again.
The first girlfriend complained that he was a workaholic, acting like he was single while working, and didn't know he had to give gifts on Valentine's Day.
He learned a lesson from that and since then, no matter how busy he was, he made sure to have a call with his girlfriend before bed, and he set early reminders for gifts on holidays.