Shattered Daniel Ross, 21 – who had been seeing her for three months and rang 999 – told an inquest how he phoned her mum to ask if she was epileptic as he battled in vain to revive her in Treforest, South Wales.
He said: “We were talking and ended up kissing in the hallway by the front door.
her mouth started to froth.
Mum Charlotte said a daughter the “picture of health one minute was taken away from me the next”.
Coroner Peter Maddox recorded a narrative verdict in Aberdare, ruling she died of the rare cardiac condition SADS – Sudden Adult Death Syndrome.