Meghan Markle is happily dating Prince Harry – but it's not always easy.
The 35-year-old actress has had to tighten her security since beginning her relationship with the 32-year-old royal. A production source on the set of Suits tells ET that Markle has security with her "at all times" on set.
"Meghan used to have a driver like everyone in the cast, which is supplied by the studio, but now she uses her own driver. She has a security guard on set with her at all times," the source says. "She has someone who escorts her to and from home and there is someone with her at all times."
Markle was last spotted at the Suits 100th episode party on Tuesday, celebrating the series' milestone. The source tells ET that everyone at the event was in a celebratory mood and shared that the cast doesn't really chitchat "or mention Harry ever."
See photos of Meghan Markle celebrating the 100th episode of "Suits":
"[Markle] spoke about how she grew up going to TV sets with her dad," the source says. "He was a lighting director for Married With Children, and because of that, she has always appreciated the crew, especially on Suits."
The USA drama will wrap for most of August and resume filming in September. In terms of where her character on the show is going, the source says, "Meghan always wanted her character to be more than a sex symbol, someone who pranced around in underwear, or had major sex scenes even before her relationship with Harry started." The source added that last summer "she did have a chat with the creative team and mentioned this to them as well."
Last week, Markle returned to her residence in Toronto, Canada, after spending 10 days in London, England, with Prince Harry. For now, she is spending time with her mom up North and doesn't have a set date to return to Los Angeles.
See photos of Meghan Markle through the years: