But Ms Friel received more emails from Appleton in which his obsession for her seemed to escalate - saying he wanted to marry her, referring to her as the "perfect wife" and sending her details of a wedding he was apparently planning, the court heard.
Appleton first attended Ms Friel's home address towards the end of 2023 dressed in a dinner jacket and inviting her to come to a ball with him.
In December 2024, he sent Ms Friel a message on Instagram saying "Je t'aime" ("I love you") before turning up at her home once more.
"That evening, she was at home with her daughter when she saw someone looking through the lounge window," Mr Patel said.
"Her daughter thought it was a neighbour and opened the door only to find Mr Appleton.
"He asked if her mum was here, she said she was not, and he handed her an empty pack of cigarettes which he said was for Ms Friel."
Ms Friel later checked her CCTV cameras and found Mr Appleton had been standing outside her home for several minutes before he was seen.
"He had been looking at the CCTV camera and was making facial expressions as though he was communicating with someone," Mr Patel told the judge.
"He mouths the words 'I love you' to the camera and holds up a ring."
Appleton returned to the house shortly afterwards on 10 December 2024, when he once again left an empty packet of cigarettes and a wooden ring for Ms Friel and was captured on CCTV "making gestures, blowing kisses, and behaving as though he was having a conversation", Mr Patel said.