It looks like we've got a case of friendly exes on our hands! Just two months after announcing their divorce, Donald Trump Jr. wished his estranged wife, Vanessa Trump, a Happy Mother's Day.

"Happy Mother’s day to the best mom in the world," he wrote on Twitter. "Vanessa enjoy your day, you’ve certainly earned it dealing with those 5 munchkins and me." The former couple wed in 2005 and share two daughters and three sons together — Kai, 11, Chloe, 3, Donald III, 9, Tristan, 6, and Spencer, 5.

Vanessa filed for uncontested divorce back in March in Manhattan Supreme Court. They released a statement to Us Weekly at the time, reading, "After 12 years of marriage, we have decided to go our separate ways. We will always have tremendous respect for each other and our families. We have five beautiful children together and they remain our top priority. We ask for your privacy during this time."

Shortly after the filing, it was revealed that Donald Jr. had an affair with Celebrity Apprentice star Aubrey O'Day while he was married to Vanessa. "Things started up with Aubrey and Don Jr. toward the end of the taping," a source told the outlet, adding they even tried for a baby. "When it started, they were very serious all of a sudden. He told her it was over with his wife, that they were separated and he didn’t love her — all of that stuff. Aubrey fell for him hard. She thought they were going to be together for real."

Vanessa hasn't been active on social media for quite some time — as her last Instagram upload was on April 16 and she last tweeted on March 25. Her last few posts have been centered around their kids, so it looks like she's doing the best she can for them after the divorce — and according to her ex, she's killing this whole motherhood thing!