At this time the cause of the actor’s death is yet to be determined and no foul play is suspected, however Cory was always very open about his struggle with substance abuse and began his second stint in rehab in March 2013 — and his devoted girlfriend bravely stood by his side during the difficult time, saying, “I love and support Cory and will stand by him through this,” she told PEOPLE. “I am grateful and proud he made this decision.”