1099-G got intercepted to my ex's debt(last year filed jointly), now we divorced can I not report it since I didn't receive any of the refund?

last year, me and my ex filed jointly, and the state tax return(itemized) got intercepted by the state government to pay for his child support for his other child (with his other ex wife), so i didn't receive any penny for that state tax.  The 1099G 's recipient id is my social since I filed the joint return, but the recipient name has both mine and my ex's name on it.  

In this case, can I not report the 1099-G on my tax return this year (filed as head of house hold since i am divorced in 2018) ? Or I need to report it and put the amount I received as 0 ( I have the letter from the state child support department that all of the state return was intercepted to my ex's child support debt)

He doesn't work, so he won't file any tax return. Will IRS find it and issue?