Anna Faris congratulates ex-husband Chris Pratt after he proposes to Katherine Schwarzenegger

She's delighted that her ex-husband is ready to have another go at marriage.

Anna Faris hit Instagram to comment one day after Chris Pratt shared that he had popped the question to Katherine Schwarzenegger after just seven months of dating.   

The Mom actress, 42, gushed 'I’m so happy for you both!! Congratulations!' she wrote on his post on Monday.      

A thumb's up: She's delighted that her ex-husband is ready to have another go at marriage. Anna Faris hit Instagram to comment one day after Chris Pratt shared that he had popped the question to Katherine Schwarzenegger after just seven months of dating; seen in May

A thumb's up: She's delighted that her ex-husband is ready to have another go at marriage. Anna Faris hit Instagram to comment one day after Chris Pratt shared that he had popped the question to Katherine Schwarzenegger after just seven months of dating; seen in May

'Proud to live boldly in faith with you':  Chris revealed that he popped the question to his 29-year-old ladylove

Happy for them: The Mom actress, 42, gushed about the groom to be

Genuinely pleased:  Faris hit Instagram to comment one day after Chris shared that he had popped the question to Katherine after just seven months of dating

Genuinely pleased: Her exact words were, 'I'm so happy for you both!! Congratulations'

Anna and Chris, 39, split up in August 2017 after eight years of marriage and have remained friendly exes for the sake of their son Jack, six.

They tied the knot in July 2009 when they eloped to Bali, Indonesia on a whim and they finalised their divorce just three months ago in October 2018. 

A host of stars also congratulated Chris and Katherine including her mother Maria Shriver, 63, who described them as 'two loving kind caring throughful Spirtual [sic] people.'  

Patrick Schwarzenegger, 25,  said simply: 'Love you, brother.'

Family love: Katherine's mother Maria Shriver, 63,  and brother Patrick Schwarzenegger, 25, both sent their good wishes to the happy couple

Family love: Katherine's mother Maria Shriver, 63,  and brother Patrick Schwarzenegger, 25, both sent their good wishes to the happy couple

Others adding their good wishes included Rob Lowe, Gwyneth Paltrow, Josh Gad, Michael Strahan, Olivia Munn, Ben Schwartz and E! News host Jason Kennedy.

Anna has also found new love. She has been dating cinematographer Michael Barrett, 47, since October 2017. 

Chris revealed his own happy news on Instagram on Sunday night posting a snap of him and Katherine embracing as the 29-year-old admired her huge diamond ring.

Sending their love: A host of celebs commented on Chris's happy news

Sending their love: A host of celebs commented on Chris's happy news

New beau: Anna has been dating cinematographer Michael Barrett, 47, since October 2017

New beau: Anna has been dating cinematographer Michael Barrett, 47, since October 2017

The Guardians Of The Galaxy star captioned the snap: 'Sweet Katherine, so happy you said yes! I'm thrilled to be marrying you.

'Proud to live boldly in faith with you. Here we go!'

The actor and the author - who is the daughter of Arnold Schwarzenegger and Maria Shriver - have been dating since June 2018 and confirmed their romance a month later when they were pictured at church with little Jack. 

Getting married: Chris, shown in May in London, and Katherine, shown in January 2018 in California, have been dating since June 2018
Famous family: Katherine is the daughter of Maria Shriver and Arnold Schwarzenegger

Getting married: Chris, shown in May in London, and Katherine, shown in January 2018 in California, have been dating since June 2018

Chris also shared his engagement news on Twitter suggesting they were revealing the news early.

'Ideally we'd have kept this secret for as long as…,' he tweeted to his 6.6 million followers along with a link to his announcement on Instagram.  

He was spotted on Saturday helping Katherine move out of her home in Santa Monica, California.   

Hollywood stars: Anna Faris is shown in April 2017 in Hollywood with Chris and their son Jack

Hollywood stars: Faris is shown in April 2017 in Hollywood with Chris and their son Jack

The former couple work hard to make their relationship work for the sake of their young son. 

Anna previously said: 'Chris and I work really hard 'cause we have Jack, that is sort of the long game idea and making sure Jack is really happy, which makes us really happy. We have sort of the luxury of circumstance.

'You know, we are both in other loving relationships ... but it is ... it's like how do you not in general sink into a place of bitterness?

'I do want to reiterate though, that I f***ing acknowledge, we all do, everyone acknowledges, that there is bitterness and pain with all breakups and that hopefully makes us all human. 

'But the long game is just the worst being the bigger person. It just is. It f***ing sucks until, then what happens though, is that everyone's happy.'  

Religious fast: The actor took to Instagram last week after embarking on the 21-day faith-based Daniel Fast

Religious fast: The actor took to Instagram last week after embarking on the 21-day faith-based Daniel Fast

The Parks And Recreation star has previously said his son's preterm birth 'really defined' his faith in God as he and Anna both 'prayed a lot' for his health.

Chris revealed on Instagram Stories last week that he was on his third day of a 21-day faith-based diet called the Daniel Fast.

The diet inspired by Old Testament prophet Daniel restricts meat and animal products, dairy items, processed foods and leavened breads.

'It's going to coincide also, coincidentally, with the Lego Movie 2 junket. So, by the time you see me, I'll probably be hallucinating. Stay tuned,' Chris told his followers about the diet.

The action star has been a regular at the celebrity favorite Hillsong Church also favored by Justin Bieber and his wife Hailey Baldwin. 

Birthday girl: Chris took to Instagram last month to celebrate Katherine's birthday

Birthday girl: Chris took to Instagram last month to celebrate Katherine's birthday

Katherine's mother Maria Shriver, 63, is a devout Roman Catholic, who was married to Arnold, 71, from 1986 to 2011.

Chris and Katherine recently returned from vacation with her family including brother Patrick and mother Maria in Cabo San Lucas, Mexico.

Chris provided voice work for The Lego Movie 2: The Second Part due out on February 8.

He will reprise his role as Peter Quill aka Star-Lord in the sequel Avengers: Endgame scheduled for release on April 26.

Coming soon: The actor will provide the voice of Emmet Brickowski in The Lego Movie 2

Coming soon: The actor will provide the voice of Emmet Brickowski in The Lego Movie 2