By The model declared that she "hated" her former partner, accusing him of not allowing her to see their children over Christmas.
She tweeted: "What kind of Dad doesn't let their children see their mum not even 1day over christmas when the children want 2 c their mum #fakefamilyman."
In other tweets that have since been deleted, Price told her followers that she "isn't allowed" to see her children at all over the Christmas period, as they will be spending it with Andre.
She tweeted to one follower: "From xmas eve am to nye am. I had them last xmas day he had them in the eve onwards. so selfish."
She continued: "They believe in santa so opening presents before christmas day isn't the same and nye isn't christmas."
Price and Andre have two children together: Junior, 8, and Princess, 6. He is currently expecting a new baby with girlfriend Emily MacDonagh, while Price recently gave birth to her fourth child.
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She added: "i HATE him so much I wish people knew what he is really like!"
I wouldn't do this to pete and deprive him and his newborn from seeing the kids for its 1st christmas
— Katie Price (@MissKatiePrice) December 15, 2013
Price also criticised Andre for not seeing her son Harvey, saying: "Can someone remind him he has a son called Harvey that calls him dad or was that just for show too."
Peter Andre and Katie Price were married for four years until their divorce in 2009. Price is also seeking £250,000 in damages from Andre and his manager in a court case which launches in March.
