Miranda Lambert Dropped Boy Toy Because He 'Broke Her Rules'

Kids, don’t be an Evan Felker.
When his band, the Turnpike Troubadours, were opening for Miranda Lambert, the artist jumped at the at a shot with the headliner — and allegedly ghosted his wife in the process!
This week Miranda announced she was single, signaling her new boy toy had thrown it all away for a mere six-month affair.
Related: Evan’s Ex Is NOT Taking Him Back Either
What she didn’t say was WHY she pulled the trigger.
A source is now telling People it’s all about the Little Red Wagon singer’s “rules”:

“I don’t think it was a dramatic split, but he knew what he was ‘allowed’ to do based on her rules and he broke them. He did something that he knew she wasn’t going to approve of, she assumed he did it and he didn’t deny it.”

Color us INTRIGUED.
Unfortunately the source did not reveal exactly what Felker did.
Cheating? Talking bad about dogs? Falling in love?
What do YOU think Evan did that got his country butt dumped??
[Image via Instagram/Judy Eddy/WENN.]