They named it anything but love.
After a failed marriage to a domineering man, Erin refuses to be controlled by anything or anyone. That includes Seth, the father of her baby—a man who was supposed to be only a one-night-stand, a man who's used to always getting his way.
There's a reason that Seth Thomas, a successful defense attorney, is often referred to as the Bulldozer. If something needs to happen, he makes it happen. That includes being part of his baby's life—even if he never expected to be a father, even if Erin doesn't really trust him.
They'll work out an arrangement in the best interest of their baby—and if they occasionally have sex, well, that's just an added perk—but they both agree on one thing.
What they have will never be love.