Monster mom and reviled reality show star Kate Gosselin famously feuded with her ex-husband and lost custody of two of her kids, but now a network publicist claims she is an “awful human” to boot!

Known for berating Jon Gosselin on camera before and after their split and sending potential boyfriends running, an insider spilled that she treated a TLC publicist like dirt!

“Everyone warned me that she was difficult — and I said, ‘No. I’ll compliment her,’” former TLC rep Joey Skladany told Rob Shuter of Straight Shuter.

“At the Today show, I said, ‘Your hair looks gorgeous!’ She wouldn’t even look me in the darn eyes!”

The mother of eight left a lasting bad impression on the TLC publicist.

“At the end of the day, I called my boss and said, 'She’s an awful human.' They were like, ‘We know. Thank you for the feedback.’”

Kate’s recent post with just four of her sextuplets on their 15th birthday seemed to be throwing shade at the two not present and, of course, their father.

“Our big celebration of #15 is finally winding down here! We celebrated ALL DAY LONG, beginning with a present at 6:30 am before school! I’m so very thankful for my ‘babies….somehow they are 15 already?! I’m amazed by them each day,” she captioned a photo with just Alexis, Aaden, Leah and Joel.

“I’m so proud of the positive qualities I’ve seen developing as they edge closer to adulthood. It hasn’t been easy for them, especially over the last year and a half, but they continue to persevere, stay positive and make lemonade out of lemons (to the point where I’m pretty sure I’m allergic to lemons, but what’s a mom to do?) but no matter what, these kids keep on keeping on,” she wrote after Jon posted a picture with just Collin and Hannah, the two children who live with him.

“Such good, wholesome, loving, insightful, wise humans and I’m just so proud to call them mine! I love you guys to the moon and back a hundred billion times x infinity. Happy 15th birthday!”

Breaking Celebrity News reported in August 2018 that Hannah now lives with her dad permanently following a bitter custody battle.

The Gosselins fought for years over troubled Collin, who spent two years in a medical facility unti