Long distances

Ok so I have been talking to this guy I have worked with for 3 years now. And our business is not all year round so he had to go home in Oct. Things were going great and it was the typical falling in love stage! ( holding hands,kissing, flirting, and touching).we were even good the first few moths he went home. Then in the past few months he has just stopped texting or calling . I am afraid that our relationship has ended. But I am taking in consideration that he has been having some family problems like his dad surgery or even his surgery! Not really sure what to do?