If things go well when you reunite over the holidays and you decide to start dating your ex, keep the communication going.
Sending only a text message to say that you had a great time instead of calling the next day won't win her heart.
Julie's the author of the bestseller, The Perils of Cyber-Dating.
For more dating advice, visit Cyber Dating Expert.com, where you can sign up for the Weekly Flirt.
Leo's 1995 rumored fling with Naomi Campbell reportedly fizzled fast, but they became good friends.
More than 20 years later, they still get together to look hot on vacation, save Russian tigers, and photobomb 50 Cent.
Perhaps it starts off innocently in November with a text message or email saying "Happy Thanksgiving." It's a safe way to reach out and reconnect without feeling you'll get rejected by picking up the phone. There's no need to rehash the past and spend time going down memory lane. Don't talk about your dating history while you were apart.
The two met in school and finally separated for good in 2011, the same year Prince William and Kate Middleton married.
If your former love interest says they're seeing someone, respect their relationship status and don't try to talk them out of it. Try and look at this as a new friendship or the beginning of a new relationship that just happened to resurface during the holidays. Unless you really want a friends-with-benefits relationship, don't immediately end up back in bed.
Don't start planning your future all over again and keep the expectations low. You may wake up regretting it in the morning, when your emotions are at an all-time high, as your mind wanders off thinking where the relationship is headed.
Before Tom Brady, Gisele Bündchen dated Leo for five years, but ended it in 2005.
"We were just not meant to be boyfriend and girlfriend, but I respect him enormously, and I wish him nothing but the best," she told Access Hollywood in 2009.
Davy expressed discomfort with the life that came with dating a royal.