Reese Witherspoon and her ex-husband, Ryan Phillippe, have mostly gotten along since their 2007 split. But 'In Touch' has learned that the former Hollywood couple have recently had some serious arguments over their kids, Ava, 15, and Deacon, 11.

reese witherspoon, ava

Reese and Ava before her ‘Hot Pursuit’ premiere on April 30.

“Ryan thinks Reese is trying to cut him out of the kids’ lives because she’s cutting back on his time with them,” a source reveals in the new issue of 'In Touch.'

“Reese has been blaming the kids’ busy school schedule, but the reason Ryan thinks she isn’t letting them see him is that she doesn’t like his lifestyle. She thinks he parties way too much and doesn’t want Ava and Deacon around that.”

reese witherspoon ava and deacon phillippe

Reese with Ava and Deacon Phillippe in 2010.

But, according to the source, Ryan finds fault in her reasoning.

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“He doesn’t understand why Reese is trying to tell him how to live his life — Ava and Deacon are honor students, and when they are with him, they do their homework,” the source says. “He takes good care of those kids and is very angry with Reese right now.”

For all the latest celebrity couple news, pick up the new issue of ‘In Touch,’ on newsstands now!