Barnaby Joyce has taken personal leave effective immediately, with Nationals colleagues urging the public and media to leave him alone.
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The former deputy prime minister has been granted leave until the end of June, but won't be back at parliament until mid-August, after the winter break.
Mr Joyce's sudden departure comes six weeks after he and staffer-turned-partner Vikki Campion welcomed a baby boy.
The couple's decision to pocket $150,000 for a tell-all television interview about their affair has dragged the backbencher's love life back into the spotlight.
"Obviously he's been under a fair bit of stress in the last six or 12 months, and he's taking some time with his family, so I can understand that," Nationals frontbencher Darren Chester told ABC radio.
"I think Barnaby can come back stronger than ever, but I think it's appropriate [he takes leave] and I respect him for taking a break now."
Nationals backbencher Andrew Broad said Mr Joyce had been through "a pretty harrowing time".
"If he needs some leave, give him some leave, leave him alone, and hopefully he'll come back and contribute to the direction of the country in his time," he said.
Attorney-General Christian Porter was reluctant to comment on the leave.
"I can't possibly make those sort of personal judgements. I'm not a counsellor. It's not for me to say," Mr Porter said.
Mr Joyce blamed Ms Campion for accepting payment for the Channel Seven interview, arguing it would not have been necessary if Australia had stronger privacy laws.
"In the last fortnight we've had drones over our house, we've had paparazzi waiting for us outside Armidale airport, we've had people following us to Uralla," Mr Joyce said on Tuesday to Channel Nine cameras.
"We tried just burning this out and that didn't work."
The paid interview will be broadcast on Sunday night.
"You can't help who you fall in love with," Ms Campion said in a promotional clip for the Sunday Night program.
Cabinet minister Kelly O'Dwyer believes most Australians are "pretty disgusted" by the interview.
"I don't think a parliamentarian should take money for an interview. I don't think their spouse should either," Ms O'Dwyer told Sky News.
Prime Minister Malcolm Turnbull said the interview was "certainly not" something he would have encouraged.
Mr Joyce was bumped to the backbench after his relationship with Ms Campion became public in February.
Their son Sebastian was born on April 16.
He has split from his wife Natalie, the mother of his four daughters.
Australian Associated Press
