"Friends" star Courteney Cox has been dating McDaid since her divorce in 2013. The following year they also got engaged after six months of dating.
She married actor David Arquette on June 12, 1999 and they have a daughter, born in June 2004.
Courteney Cox on Saturday took to Instagram to wished Johnny McDaid on his 45th birthday.
Sharing a picture with McDaid, the actress wrote, "Happy Birthday to my best friend and love. He’s the kindest, most patient, best listener, curious, caring, not to mention talented and gorgeous partner. I love you jmd."
Cox recently appeared on the highly anticipated "Friends" reunion along with other cast members including her pal Jennifer Aniston.