It's thought that members of her family have flown over from the US to help the star through this difficult time.
Referring to her as his "friend", Lewis claimed their time together made him who he is now, and wished her all the best for the future.
He wrote: "Dear friend, Through the years we shared alot, i wouldn't have changed a thing.
The pair had an on/off relationship for seven years before putting an end to their romance last year.Although neither of them had commented on the reasons behind their split, it was reported that it was due to long distance.However, since the split, it's been safe to say the Grand Prix champ hasn't been short of female attention as he's been linked to a number of other ladies in the limelight including Chanel Iman and Rita Ora.Nicole Scherzinger and Lewis Hamilton were spotted at the same London nightclub this weekend... According to sources, the pair both attended The Box nightclub in Soho on Friday night and spent four hours inside together to watch singer John Newman perform. A source told : "They arrived separately to watch a John Newman performance and sat at different tables."But then they were taken to a private room.
judge as there was something more important to him than romance."My cars are my babies," said the 31 year-old.
"I used to say, when I had a girlfriend, 'I'm taking one of the girls out, so you can come if you want, but you come second when it comes to the cars.'"Ouch.