Matthew James and his fiancée Sarah Wilson were holidaying in Tunisia's resort town of Sousse on Friday. At least 37 people were killed in the attack carried out by ISIS.
This was the second terror attack on foreign tourists in Tunisia since March 18 when militants killed 24 people, 20 of them foreign tourists at the Bardo Museum in capital city of Tunis. ISIS subsequently claimed responsibility.
Survivor Sarah explained how her brave fiancé saved her from the terror which killed 37, Mirror.co.uk reported.
Gunman posing as a swimmer, used a beach umbrella to hide his Kalashnikov rifle before starting the slaughter.
Sarah said: "I was screaming and it was chaos as more shots were coming out.
"He just told me to run away. He said: ‘I love you babe. But just go - tell our children that their daddy loves them."
Engaged couple Sarah and Matthew, from Pontypridd, South Wales, had left their two children Tegan, six, and Kaden, 14 months at home with their family when they jetted out to Sousse on June 21 for a two-week break.