Jennifer Garner and Ben Affleck
Jennifer Garner and Ben Affleck have remained close despite their split Reuters

Jennifer Garner is allegedly unhappy over Ben Affleck's relationship with Elizabeth Weaver. According to the National Enquirer, the Argo actor is "hooked" onto his "detox nurse."

An alleged source said: "Ben is infatuated with her. He's feeling pretty vulnerable these days, and Elizabeth has helped him regain his confidence."

"He adores her," the insider added.

Affleck and Weaver were first seen together in Beverly Hills on 5 January. The Daily Mail published a series of photos of the two enjoying a sushi lunch date.

Weaver is the founder of Concierge Nursing Care, a boutique nursing agency. In her website, she says that she has worked with "the most high profile clients in Los Angeles and New York City over the past decade."

In a statement on the site, she said: "I want to make a difference in people's lives. I'm unique because I come into this with years of hands-on experience as a private duty nurse and with a world of resources that I can bring in as a team player. I desire to make a valuable contribution to the delivery of quality health care through problem solving, innovation, and providing customized care."

The 44-year-old actress and Affleck have remained close, though they announced their divorce in a joint statement on 30 June 2015 — a day after their tenth wedding anniversary.

Previously, Affleck had talked about his successful co-parenting with Garner. He told E! Online: "I was doing math homework last night. When I'm there, you're stuck with your parents helping you with your homework. Jen [Garner]'s very good at math [too]. So far, my eldest kid is in fifth grade and they haven't passed me yet. But I feel like in seventh or eighth grade I'm going to start worrying that they're going to lose me."

Affleck continued: "It's important to be involved with your kids' schoolwork so you know what's going on and what they're doing and what you're supposed to be supporting and going to school nights."