The day after an Iowa woman was arrested on suspicion of child endangerment for leaving her four preteen children home alone while she traveled in Europe, her ex-husband told Inside Edition he is not surprised to hear that she was charged with such reckless behavior.

As CrimeOnline reported this week, Johnston police believe 30-year-old Erin Lee Macke flew out of the country for what she planned to be an 11-day vacation without planning for childcare. In addition to child-endangerment charges, she also faces one count of making a firearm available to a person under 21.

Matthew Macke, the suspect’s ex-husband and father of her two youngest children, said in an interview Friday that he is “really angry” at her for what he believes to have been a willful act of neglect.

“I wish I could say I am surprised, but I am not,” he said.

While police found the children, ages 6 to 12, safe in their mother’s home last week in response to a welfare check, they believe Erin Macke intended to remain on her European tour much longer. As authorities tended to her four children, who were initially placed in the care of extended family members, she was reportedly posing for social media posts of herself enjoying the local culture in Germany.

For her ex-husband, all of the allegations add up to what he called a “clear, deliberate, intentional act.”

He went on to confirm the children are “doing well” despite their ordeal.

During a preliminary court appearance Friday, Erin Macke reportedly asserted she did not leave her children alone when she flew out of the country on Sept. 20. For the record, Matthew Macke doesn’t believe her.

“If she wants to take a vacation,” he said, “more power to her. But she has a responsibility as a parent.”

The mother was released Friday on $9,000 bond, KCCI reported, though a court order prevents her from contacting her children. She is scheduled to appear in court again on Oct. 9.

[Featured photo: Inside Edition/Screenshot]