WATCH: Sam Frost opens up about being in a 'toxic relationship'The actress, who stars as Jasmine on Home and Away, has been hanging out with the defence worker in Melbourne, frequently sharing footage of their cute catch-ups to Instagram. “Swimming lessons with Greg,” she captioned one clip, which shows her wading into the ocean while holding the dog she shares with the 27-year-old.Sam and Dave share Greg (pictured) together.In another post uploaded just days earlier, Sam, Greg, Dave and his