Speaking to The Mirror, the talent show judge maintained that leaving the BBC ballroom dancing show was the right decision.
"I'd be lying if I said I didn't think about doing both but it felt like it was time to move on," she recalled. "Three years is a respectable amount of time and I wouldn't want people to get bored of me. Always be the one to leave the party, I say.
"I haven't seen the other judges since, but I keep meaning to say 'let's go for dinner' especially with Bruno Tonioli - he was my best mate on the panel, I love him to bits."
Addressing Simon Cowell's claims he poached her to annoy the BBC, the singer said: "I'm sure he got off on that. But I'm a 33-year-old woman who makes her own decisions.
"It makes it sound like he stole me and I had no choice. I'm not a puppet, I was like, 'Well no-one lost their job, so there can't be an ageist debate, no-one's being fired, I'm out of a contract, I'm a free agent'. And I like the unknown, I get a kick out of challenges."
Of her vacant Strictly seat, Dixon added: "I've been wracking my brains. I don't think there's an obvious choice. I doubt Arlene Phillips is going to go back."
> Len Goodman blasts "spiteful" Simon Cowell over BGT Alesha Dixon poach
Watch Alesha Dixon and Simon Cowell speaking to Digital Spy below: