For the first time since her split with boyfriend Reggie Bush, Kim Kardashian has spoken out, thanking “the best fans ever” for their goodwill messages.

“I truly appreciate all the love and support I’ve been receiving over the last 48 hours,” Kardashian, 28, says on her blog Wednesday. “I just want you all to know I’m doing okay, and I really appreciate your support.

The Keeping Up with the Kardashians confirmed her breakup with Bush, 24, on Monday. They had been dating since 2007, and sources blamed the split on their busy schedules keeping them apart. – Mike Fleeman

The latest news now : Are Kim Kardashian and Reggie Bush keeping up with each other?

Just three weeks after they amicably split, the pair were “all smiles” as they walked together Monday into a Ruth’s Chris Steak House in New Orleans, an observer tells PEOPLE.

Why they hooked up wasn’t yet known – her rep didn’t immediately comment – but both were in the Big Easy on business: Kardashian had a long-planned appearance at a Dress for Success charity event and Bush is in the Saints training camp to prepare for the NFL season.