Disclaimer: This is a fanfiction, not for profit, story. I don't own these characters, just borrowing them from Lewis.
Inspector Robbie Lewis was devastated by the recent death of his wife. He drank a bottle of brandy every night trying to dull the pain. Shortly after the funeral his son left for Australia and his daughter went back to school, so he usually drank at home, alone. Some nights he went to his local pub. On those occasions his sergeant or another police officer would make sure he got home safely.
One Friday evening Dr. Laura Hobson was having a drink with her new boyfriend Franco at the pub near her home. They were planning their winter holiday, a ski trip to Switzerland. Laura was surprised to see Robbie sitting alone at the bar, looking shaken and pale. This wasn't the pub he usually frequented. Tonight it appeared that no one from the force was there to look out for him. She told Franco that Robbie was a friend from work whose wife had died a short while ago, and she should check on him, take him home if necessary. Franco said of course, and he would help her. Laura went over to Robbie, put her hand on his shoulder, and spoke softly into his ear. Franco didn't hear what she said to him.
Robbie was uncharacteristically submissive and allowed Laura to drive him home in her car, with Franco following in his. They got Robbie inside and on the couch. Laura took off his jacket and shoes and put a pillow under his head. Franco brought Laura's medical kit in so she could check Robbie's vital signs. Laura gently put a thermometer under his tongue to measure his body temperature. After that she held his wrist a little longer than necessary to check his pulse. Then Laura carefully rolled up his sleeve so she could take his blood pressure. Franco thought Laura looked puzzled by the result and that must be why she took it again. After a few more minutes of listening to Robbie breathe and looking into his eyes with a torchlight Laura said she thought he was all right to be left alone to sleep for the rest of the night. As Robbie drifted off into a deep slumber, she called his sergeant and asked her to check on him in the morning. Finally she tucked Robbie in with a blanket, as he lay snoring.
Franco looked affectionately at Laura, thinking how she was both a good friend and a dutiful doctor, always looking after those who needed her. He saw her take one long, last look at Robbie Lewis before they left. This was the moment he realized that someday he would lose her, and why.
A year later when they were planning their next winter holiday, Laura told Franco that instead of a ski trip, she would like to go to the British Virgin Islands.