Cory Monteith's mother couldn't look her late son's photos until three days ago.

A year has passed since the 'Glee' actor was found dead in a hotel room, but his mum Ann McGregor has admitted she has been unable to bring herself to look at pictures of him until recently.

Cory's mother tried to remain positive as she referred to the breakthrough as ''progress''.

Talking on 'Good Morning America' yesterday (17.07.14), she said: ''The loss is horrendous. Until three days ago I couldn't look at a picture of Cory. So there's been progress.''

Ann also revealed that she hasn't been able to watch 'Glee' since her son's passing and has yet to see the episode which is dedicated to Cory.

The late actor's girlfriend and fellow 'Glee' star Lea Michele has remained in contact with Ann, who revealed she too is still coming to terms to with Cory's sudden death.

Ann said: ''[Lea] texts me and emails me. She's hurting. I know her pain.''

The matriarch also shared several home videos with the TV show, allowing them access to recordings of a young Cory playing with his dog and even acting in a school play.

An emotional Ann reflected: ''He had that mischievous side to him all the time. Always looking for something ... looking for stimulation.''

She added: ''He was a star. I'm still in awe, I always will be.''