"He couldn't keep his eyes off her all the time he was there.
"There was a lot of flirting in the tub and Hermione was loving the attention as they necked champagne and gobbled sushi.
"Hermione's a really bubbly girl who's not shy about showing off her body or having a good time.
"She really put a smile on Harry's face after his row with Taylor."
The 27-year-old English born beauty is the star of the Bravo reality series Start-ups: Silicon Valley and spends most of her time travelling the world or at her apartment in San Francisco, where her multi-millionaire brother Ben is also based.
Meanwhile, sources have revealed that Harry and Taylor's bust-up was caused by her dismissive attitude.
One insider said: "Taylor knows she's far more high-profile in America and way richer, and saw her career as more important. She always brushed off his schedule and needs and put hers first.
"When he complained his bandmates were getting irritated and she should do more to make things work, they started to yell crazy things. Taylor even yelled he was lucky to be with her.
"There were also problems over commitment. Harry wasn't committed enough for her liking."
- Bang! Showbiz
