Fraser left the South Coast club on June 30 after declining the chance to play following the coronavirus suspension - with Bournemouth ultimately being relegated from the top-flight by a single point.
However, the Scottish winger has defended his choice after he moved to Newcastle.
Fraser said: "My contract was done, so it's not like I refused to play any games.
"Obviously I made the decision not to play and got battered for it. Everyone has got their opinions but, at the end of the day, I need to look after myself.
"Nobody saw this virus coming. If the virus didn't come, I would have played every game under my contract."
Fraser revealed that he was "gutted" after Bournemouth suffered relegation but insists there are "no hard feelings" between him and the club.
He explained: "I'm always going to get criticised. I wish Bournemouth the best of luck and I still talk to Jason Tindall [the new manager]. Two weeks ago I met Eddie Howe in a coffee shop and spoke to him for about an hour. There are no hard feelings.
"I didn't want Bournemouth to go down, it would have been a lot easier if they'd stayed up. With me playing, without being big-headed, I think I would have helped massively. I wasn't sad. I was gutted."