Donna Barnes NYU Certified Life & Relationship Coach
Author of Giving Up Junk-Food Relationships

There is no failsafe way to know if your lover will cheat on you or not. But there are some signs you can look for in the early stages of dating. Just one of these behaviors on its own may not be cause for alarm, but if you observe three or more, you can safely consider the person in question junk-food.

Author Donna Barnes is a Life and Relationship Coach certified by New York University. She was an on-air expert for ABC News's What Would You Do? and writes advice columns for various websites. Giving Up Junk-Food Relationships is the first book in the Relationship Recipes series.

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