Celebrity couples who fall in love and make their relationships work seem like one in a million sometimes.

Surprising Celebrity Couples PHOTOS

Watching celebrity couples who fall in love and defy the odds by making their relationships last is almost as magical as seeing the fictional characters they play in movies and on TV also fall in love, but sometimes these romances are tragically cut short.

While celebrities breaking up are rarely a shock in the news media, couples ripped apart by tragic events like one of the partners suddenly passing away aren't as common, and are often times some of the most tragic stories to come out of Hollywood. Whether the significant other passes away because of drugs, suicide, accidents or medical reasons, their death is not only shocking and upsetting for fans, but for the one they left behind as well.

Celebrities Who Died Young PHOTOS

Couples including Glee stars Cory Monteith and Lea Michele, Brokeback Mountain co-stars Heath Ledger and Michelle Williams, and Oscar winner Philip Seymour Hoffman and partner Mimi O'Donnell have all seen their relationships tragically end forever due to drugs, while medical emergencies and accidents broke apart Natasha Richardson and Liam Neeson and John Ritter and Amy Yasbeck.

Enstars compiled a list of eight truly tragic celebrity love stories cut painfully short. The first couple on the list is Michele and Monteith.

The two met on the set of the soon-to-be hit FOX show Glee, and went public with an off-screen romance in early 2012. They seemed destined to have a future together, often gushing about one another in interviews and on TV appearances. When Monteith was admitted to rehab in early 2013 for relapsed drug abuse issues, Michele stood by his side and supported him, proving the couple was in it for the long term. However, despite being clean after rehab, Monteith was found dead July 13, 2013 in a Vancouver hotel room after a mixed drug toxicity of heroin and alcohol . Since his death, Michele has continued working on their hit show and released her debut solo album with several songs devoted to her late love.

Scroll through the photo gallery for more tragic celebrity love stories: