Always treat your co-parent with respect and compassion. A metaphor for co-parenting might be, "Treat them as well as you do a convenience store clerk." You want to get in and get out with as little hassle as possible.
Here's what that looks like. About 2 - 3 times a year, they freeze my bank accounts. I call them. They ask how much money is in the accounts. (As if they don't know.) Then they take 50% of everything I have. And in the course of the next few days, my banks will unfreeze the rest of the money. Effectively, I am left with zero dollars.
Divorced dads have a lot harder time staying involved in their kids' lives, even with they make every effort, keep every appointment, and ask for more time then they are given with them, post-divorce. I am that dad.