A young British woman committed suicide after she found child porn on her boyfriend’s phone, according to her inquest.

Devastated Lydia Roberts, 21, had a huge fight with boyfriend Adam Wells, 27, after finding the revolting images from an illicit Russian-based website downloaded onto a second phone he had, the Manchester Evening News reported Tuesday.

He left her to meet friends — coming home in the early hours to find her hanged in their home in Manchester, the inquest heard.

Businessman Wells was later placed on the Sex Offender Register for five years after being charged with possessing 31 indecent photos of children, the Evening News said.

Coroner Zak Golombeck ruled Roberts’ June 2017 death a suicide, noting that text messages as the couple fought over her horrifying discovery made it clear she intended to take her life.

Roberts’ mother, Michelle, insisted that discovering Wells’ sick secret life “made her make the decision” to kill herself.

“Lydia felt violated, hurt and disgusted at what she found,” she told the Evening News in a statement.

“As a family we are devastated at the loss of our beautiful daughter and for this we will never forgive him.”

Suicide prevention hotlines include the National Suicide Prevention Lifeline, which can be reached at 800-273-TALK.