Business is booming.

Jennifer Garner puts her diamond eternity band back on as she is seen smiling

Jennifer Garner, 50, puts her diamond eternity band back ON as she continues to get close to John Miller, 44… after her ex Ben Affleck married JLo this summer

<!–

<!–

<!–<!–

<!–

<!–

<!–

Jennifer Garner was seen in Los Angeles on Tuesday afternoon.

The 50-year-old Alias ​​actress has her diamond eternity band back on her right hand after leaving it at home for the past few days. The tape may belong to her longtime beau, 44-year-old businessman John Miller.

Ben Affleck’s ex smiled as she modeled a name tag that read Jen Garner on the front of her sweater.

Ring on: Jennifer Garner was spotted in Los Angeles on Tuesday afternoon.  The Alias ​​actress has her diamond eternity band back on her right hand after leaving it at home for her last few sightings.  The band may belong to her old beau John Miller

Ring on: Jennifer Garner was spotted in Los Angeles on Tuesday afternoon. The Alias ​​actress has her diamond eternity band back on her right hand after leaving it at home for her last few sightings. The band may belong to her old beau John Miller

Good mood: she has kept her good looks as a movie star;  here she flashed her infectious smile

Good mood: she has kept her good looks as a movie star;  here she flashed her infectious smile

Good mood: she has kept her good looks as a movie star; here she flashed her infectious smile

The 50-year-old actress from The Adam Project wore a long cream collegiate-style cardigan over a white shirt. She was also wearing a knee-length black skirt.

The mother of three also added white sneakers.

Her dark hair was pulled back and she was makeup-free because she carried a wallet and some paperwork.

The 13 Going On 30 has been dating 44-year-old businessman Miller for many years.

It is unknown if they are engaged or not as Garner remains very private about her love life.

Easy breezy style: The 50-year-old actress from The Adam Project wore a long cream collegiate-style cardigan over a white shirt

Easy breezy style: The 50-year-old actress from The Adam Project wore a long cream collegiate-style cardigan over a white shirt

Easy breezy style: The 50-year-old actress from The Adam Project wore a long cream collegiate-style cardigan over a white shirt

Name here: Ben Affleck's ex smiled as she modeled a name tag that reads Jen Garner on the front of her sweater

Name here: Ben Affleck's ex smiled as she modeled a name tag that reads Jen Garner on the front of her sweater

Fuzzy: Her name couldn't be seen, but it spelled Jen Garner

Fuzzy: Her name couldn't be seen, but it spelled Jen Garner

Name here: Ben Affleck’s ex smiled as she modeled a name tag that reads Jen Garner on the front of her sweater

Her ex Affleck married Jennifer Lopez in late August.

Garner has been nothing but overly supportive of her ex-husband, Affleck.

Hollywood’s all-American girl has been by Affleck’s side for years, despite their breakup in 2017 after 12 years of marriage.

The former couple’s children — Violet, 16, Seraphina, 13, and Samuel, 10 — were all on hand to watch their father say, “Yeah,” after his and Lopez’s quick Vegas chapel ceremony last month.

There's the bling: the diamond ring was on display here while flashing a pink manicure

There's the bling: the diamond ring was on display here while flashing a pink manicure

There’s the bling: the diamond ring was on display here while flashing a pink manicure

The Garner way: She was also wearing a knee-length black skirt.  The mother of three also added white sneakers.  Her dark hair was pulled back and she was makeup free because she had a wallet and some paperwork with her

The Garner way: She was also wearing a knee-length black skirt.  The mother of three also added white sneakers.  Her dark hair was pulled back and she was makeup free because she had a wallet and some paperwork with her

The Garner way: She was also wearing a knee-length black skirt. The mother of three also added white sneakers. Her dark hair was pulled back and she was makeup free because she had a wallet and some paperwork with her

For Sale in Los Angeles: She Walked Outside a Building with a KW . For Sale Sign

For Sale in Los Angeles: She Walked Outside a Building with a KW . For Sale Sign

For Sale in Los Angeles: She Walked Outside a Building with a KW . For Sale Sign

Her Little Ones: Garner with Violet, 16, Seraphina, 13, and Samuel, 10, in 2018

Her Little Ones: Garner with Violet, 16, Seraphina, 13, and Samuel, 10, in 2018

Her Little Ones: Garner with Violet, 16, Seraphina, 13, and Samuel, 10, in 2018

“Jen has always approached things the same no matter who Ben has been with,” said an insider.

“They have kids together — so if he has another episode, or falls off the car, that would be her problem.”

But the source who knows both Garner and Affleck reiterated, “Jen is a great mom, she really did mother those kids — and it’s great that she doesn’t have to have a fourth child anymore.”

“I know Jen will always take care of Ben. All she’s ever done is be there for Ben. They have three children together and she loved him with all her heart,” said the source who knows the former couple. “I’m sure she would like him to be happy, but she has her own life and her own boyfriend.”

Her ex is now a married man: Ben married Jennifer Lopez in Georgia at the end of August

Her ex is now a married man: Ben married Jennifer Lopez in Georgia at the end of August

Her ex is now a married man: Ben married Jennifer Lopez in Georgia at the end of August