If you think you might be cheating, you probably are.

Close friendships can gradually evolve into affairs, reports Dr. Shirley Glass. If you find yourself growing closer with your friend than with your partner, ask yourself, “Would I feel comfortable if my partner saw this behavior?” And because most affairs begin as fantasies, if you’re picturing yourself with someone besides your partner, Glass recommends you don’t feed the emotional flame with any extracurricular flirting. A little flirtation can be harmless, but if you find your self really savoring that non-couple time, have an honest conversation with yourself about the vulnerabilities in your relationship.
MORE: What Counts As Emotional Cheating?