A family friend told the Sun they were "absolutely gutted" about Aaron's death, so soon after Sophie's.
Local police confirmed the body of a young man had been found at an address in Blyth, Northumberland.
"There is not believed to be any third party involvement".
"There are not believed to be any suspicious circumstances surrounding her death".
Deadly bacteria fears: Supermarkets recall frozen vegetables
Woolworths said it proactively manages and prevents microbial contamination of food, and has very strict protocols in place. Woolworths said that recall was a precaution after a global recall was issued by the Hungarian Food Safety Agency.
The reality TV star was laid to rest at St. George's Church in Jesmond, a suburb of Newcastle, England, in a private family service, with Aaron sharing a picture of the order of the service on Instagram shortly after.
Following her passing, Armstrong had expressed tremendous grief on social media. "Everyday we spent together was so wonderful I need them days back".
Beside a picture of Sophie posted to his Instagram, he wrote: "Just wish I could cuddle you all day".
"Please do not forget to be a little bit kinder every day to every person in your life. I love you princess". And I truly hope you fly high together.
Fellow "Love Island" contestant Katie Salmon, who coupled up with Sophie on the show, shared a heartbreaking message, alluding to suicide.
Readers seeking support and information about suicide prevention can contact Lifeline on 13 11 14, Suicide Call Back Service 1300 659 467 or Kids Helpline on 1800 551 800.