I'm glad you won your case. The important thing is the children, and it will be best for them in the long run if you are a little better off financially because of the support.
My own divorce is now 20 years behind me, our 2 children now just getting started in their own adult lives (one son in college, the other graduated and now working). My ex-wife had been cheating on me until she thought she was ready to leave me and marry her boyfriend, and without getting into too many details, it was both hurtful and insulting going through that. I was left pretty disgusted with that woman, and once the divorce was over, I wanted nothing to do with her, ever.
But, when you have children together, that just isn't possible. After all those years of visits back and forth, sitting together at parent-teacher conferences, sporting events, school plays, etc. I still have to deal with her constantly, as we work together to get them through college and job searches, and I'm sure there's weddings and grandchildren that will still cause us to hang around together. It's been long enough that I don't get angry to be around her anymore, but I would not say I enjoy it. There's a lot of bad memories.
So, I would say you may also feel a little down right now because you would like nothing more than for this to be over and done, but it really isn't going to end. You're going to be stuck dealing with her time and time again, over the years.
I'll say to you: the opposite of love is not hate, it's apathy. Eventually, you both kind of get to a point where you have to be around each other for events with the kids, but treat each other like you would some random guest you've just been introduced to: exchanging formal greetings and moving on to talk with others without thinking about it.