They’re so in love! Jennifer Garner and boyfriend John Miller “are planning to spend the upcoming holidays together,” a source tells Us. Although the mom of three, 46, will be with her ex Ben Affleck and their kids, Violet, 13, Seraphina, 9, and Samuel, 6, on Thanksgiving Day, she’ll see the Cali Group CEO, 40, over the weekend. Then for Christmas, the couple of six months “are planning to go on a romantic getaway,” reveals the source. “The relationship continues to be extremely serious. John is head over heels in love with Jennifer.”
THE REAL DEAL He’s also come through for her during some tough times. In August, she had an intervention for her 46-year-old ex, who battles alcoholism. She drove Ben to a rehab facility where he stayed for…
