Jennifer Garner is in Ben Affleck’s corner.

The “13 Going on 30” actress “wants the best” for her ex-husband amid his marital woes with his wife, Jennifer Lopez.

“She wants him happy and healthy so he can be the best dad possible,” a source told People Tuesday.

Jennifer Garner wants Ben Affleck “happy and healthy” amid his marriage woes.GC Images

The actress reportedly “wants the best” for her ex-husband.Getty Images

She’d like for him to be the “best dad” to their three children.GC Images

The former couple notably have co-parented Violet, 18, Seraphina, 15, and Samuel, 12, since separating in 2015.

The duo finalized their divorce three years later, with Affleck, 51, going on to marry Lopez in 2022.

The magazine reported that Garner, 52, “likes” the “Let’s Get Loud” singer, 54, for her “healthy lifestyle” and “support” of Affleck’s sobriety.

Garner loves the “support” and “healthy lifestyle” Affleck’s wife, Jennifer Lopez, provides.Getty Images

The couple are facing rampant split speculation.Thecelebrityfinder/MEGA

“Jen wants that for Ben,” the insider said.

The exes have continued to amicably co-parent as headlines swirl about Affleck stepping out without his wedding ring and missing Lopez’s “Atlas” premieres.

The “Gone Girl” star even attended his eldest child’s graduation party over Memorial Day weekend sans Lopez.

Affleck has recently stepped out without his wedding ring.GC Images

The actor also missed two of Lopez’s movie premieres.AFP via Getty Images

Violet got her high school diploma earlier this month, with Garner sharing emotional snaps of herself sobbing via Instagram.

“Tell me you have a graduate without telling me you have a graduate. 🎓 (bless our hearts 🥺♥️🤣),” the proud mom gushed on May 20.

Lopez, who has been photographed spending time with Violet and her siblings over the years, has two children of her own.

Lopez shut down a bold reporter asking about their relationship status.CBS

The “Gigli” co-stars have been married since July 2022.

The performer shares twins Emme and Max, 16, with ex-husband Marc Anthony.

Lopez and Affleck’s love story began before she became a mom, with the pair initially being engaged from 2002 to 2004.

They reconciled in 2021 and got engaged in April of the following year.

Garner is reportedly “encouraging” them to stay together.GC Images

She and Affleck were together from 2004 to 2015.Getty Images

Garner is “encouraging” Affleck to “work on” his romance with the Grammy nominee, a source told Us Weekly last week.

“She fully supports their relationship and wants nothing more than for him to be happy,” the outlet reported.

Affleck and Lopez have yet to directly comment on split rumors — although the “Shades of Blue” alum did shut down a reporter who should have known “better” than to ask her outright at a recent press conference.