Becca Tobin and her friends are reportedly "baffled" by Matt Bendik's death.
The 'Glee' star, 28, is desperately "looking for answers" after her boyfriend was found dead in his hotel room at Philadelphia's Hotel Monaco on Thursday.
An insider said: "He was such a solid guy. What a loss... Everyone is looking for answers and reasons right now."
Another source told UsMagazine.com that the late nightclub owner, 35, "didn't do drugs" and "only casually" drank, adding: "He was a hardworking businessman, the nicest guy, very diligent, with such vision. It is unbelievable. None of us knows what it could be. He was a guy that loved life and loved living."
A friend close to the couple also said: "He was doing really well and they were happy together."