My question involves a child custody case from the State of: oregon

So the back story is for the past 7 years my ex and I have co parented easily. He moved after we split and would come stay with us to visit once a year. After a year to get on his feet he started paying an agreed upon amount for support. We both remarried and all got along just fine.

A year ago my husband and I decided to move and felt it was in the best interest of my daughter to be closer to her dad. So we moved 1300 miles closer. The original agreement was we would move to a city about 270 miles from them and they would look to move here too or at least much closer. Visits were once a month and we spent all holidays together at our house. Seems amazing right?!?! Well there were some complications. They were always hours late, changed weekends all the time last minute and would always bring our daughter back super tired, having done no homework and spoiled. My husband and I decided not to push it because they were not used to being responsible so it would take time. Once the NCPs wife became pregnant things got worse. 2 months ago after a big fight about visits and child support I decided maybe it was time for a court order. That way we had a plan to follow and a set amount of child support that he couldn't pay only when he felt like it
So I went to court, he was served, and he never responded. I filed and was granted a default order.
He refused to negotiate with me so I used the long distance parenting plan provided by the state as a guide to create ours considering the distance and my daughters age. His visits are the same, he has 2 weeks for summer and rotating holidays.
Every single visit is a struggle because he tries to go around the parenting plan and when I say no he blows up. I used his income for child support and he thinks it's way too much. Probably because he paid so little for so long.
Anyways my question is can he actually take me back to court if nothing has changed, I have texts showing he knew he was supposed to respond to the filing and didn't, and he did meet with an attorney during this process, and the service was a personal service at a notary where he signed for the docs? Now I've told him even now to send over the parenting plan he wants with the support amount he thinks is fair. He refuses. He just wants me to not follow our current plan. I told him I am and always have been willing to negotiate but as of now this is our parenting plan so I will follow the order only.