Hello - i had to take my ex back to court for not following the child support order in place, he was ordered to cover our son for medical and pay 300 a month, he choose to drop her from medical and pay 150 a month, in the beginning i had my son (granted full custody) then we decided our son would live with him, he asked me for 100.00 a month (not court ordered) in which i paid (he was remarried and had two incomes so he wasnt worried about money at the time, he was just glad to get the 300 a month back into his check. now 5 years later, our son is in my custody and he now wants to take me to court for not paying him child support. can he even do that???