I have a question about changing child custody agreement and non-custodial parent claiming child on taxes.

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Also we reside out of state and the child resides in Fresno,CA. He is looking for specified days when he can speak to the child, a couple of weeks out of the year where he can have the child(noting who pays for the transportation), would like to claim him as a dependent on his taxes, and change the original judgement from minimal supervised visits to unsupervised visits. If this matters, upon him informing her of his wishes to divorce the ex, she took many pills in an attempt at suicide. A report was taken, but she in turn made a report against him of alleging that it was because of the things he said to her it made her attempt suicide. I believe he called it "terrorist threats". We dont have any laws like that here...i've never heard of trying to charge someone with a crime for making their spouse want to kill themselves???? No charges were sustained.