Jennifer Garner was "very ready to move on" from her divorce when she met new beau John Miller.

Jennifer Garner

Jennifer Garner

The 46-year-old actress finalised her divorce with Ben Affleck - with whom she has Violet, 12, Seraphina, nine, and Samuel, six - earlier this month, three years after they first announced they were splitting, and this week, Jennifer was reported to be romancing CEO John Miller.

Now, sources have said that although the divorce is still fresh, the 'Peppermint' actress has felt "single for a long time", and was ready to put the past behind her when she met the entrepreneur.

An insider told People magazine: "Although the divorce was just finalised, Jen has considered herself single for a long time. Dating is just a natural step. Jen will always care about Ben and help him be the best dad. She was very ready to move on though. She seems very excited about the future and is in a great place both personally and professionally."

John marks Jennifer's first boyfriend since splitting with 'Justice League' actor Ben, who has enjoyed romances with 'Saturday Night Live' producer Lindsay Shookus, and Playboy model Shauna Sexton in recent months.

Meanwhile, it was recently reported that Ben, also 46, "wants the best" for his former spouse, after she supported him during his recent trip to rehab for alcohol addiction.

A source said: "Ben will always want the best for Jen. They continue to have a really strong relationship and both work very hard to make everything easy for the kids. She has always been supportive of him."

The 'Alias' star was reported to be dating CEO John, 40, earlier this week, but sources say the relationship is still new, and he hasn't met her brood yet.

An insider said: "They are casually dating but it's not serious. He hasn't met her kids."