Hideous harassment of tennis players has come under the microscope this week, after Emma Raducanu was targeted by a "fixated man" in Dubai.
The same individual appeared at her second round match with Karolina Muchova on Tuesday night, with a tearful Raducanu hiding behind the umpire's chair as the man was ejected.
"I remember once when I was young, when I was 14-years-old, I was playing one of my first ITF tournaments, and I received a message after my loss that said: 'Look around because I'm going to find you and I'm going to cut your arms.
Boulter has been in a relationship with Aussie Alex de Minaur since 2020, with the pair announcing their engagement last December.
When picking up De Minaur during the ATP event in Queen's last year, Boulter endured further harassment.
