Sources close to Sandra Bullock tell FOX411.com that the actress is definitely not taking ex-husband Jesse James back after the two split in March following allegations of James’ infidelity from multiple mistresses.

Despite reports that Bullock, 46, and James, 41, speak frequently and have met up, we have learned that Sandra and Jesse are reconciling only to the extent necessary for her to be able to spend time with his children.

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“She’s doing it especially for Sunny,” the insider told FOX411.com. “She is not ready to give up on Jesse’s children. She wants to be in their lives and continue to spend time with them. Sandra will not be letting him back into her life otherwise. She is holding strong and firm to her solo future plans.”

Those solo plans include raising her adopted son, Louis Bardo.

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“Sandra is moving on with her life and settling into single life just fine. She is busy with baby Louis, work and friends,” said the source.

But James will be close by much of the time. The exes agreed that he could get a home near her Austin, Texas home so they can co-parent his children.

“They are selling their joint L.A. home together and Jesse has his own L.A. place. Sandra will split her time between Texas and New Orleans and Jesse will split his time between LA and Texas,” the insider explained. “Sandra and Jesse speak infrequently, via email and other people. It’s a lot to take on so close to their break-up … but it is all about the kids. Her friends are worried about her being close to him at all, but Sandra knows what she wants. Jesse can only get back into her life if Sandra chooses and she is nowhere near that place.”

Despite James’ public apologies to Bullock and desire to reconcile, our source says its not in the cards.

“Sandra will not be taking him back or spending any quality time with Jesse. They are over and she has made it very clear to Jesse,” the source said.

Can’t say as we blame her.