Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 61. Chapters: Human sexual activity, Internet relationship, Aphrodisiac, Petting, Affair, Online dating service, Menage a trois, Crime of passion, Infidelity, Human bonding, Intimate relationship, Kissing traditions, Romantic friendship, Co-sleeping, Nice guy, Mistress, Cretan pederasty, Friend zone, Emotional affair, Shidduch, Girlfriend, Cruising for sex, Physical intimacy, Obsessive love, Casual relationship, Smirting, Public display of affection, Living apart together, Biblical courtship, Hug, Shalom bayit, Boyfriend, Making out, Interracial personals, Primary and secondary, Fear of commitment, Bundling, National Survey of Sexual Health and Behavior, Dear John letter, Sanky-panky, Christian side hug, Maternal bond, Eskimo kissing, Paternal bond, Free union, Hugs and kisses, Human Awareness Institute, Couple costume. Excerpt: In many intimate relationships in most cultures there is usually an express or implied expectation of exclusivity, especially in sexual matters. Infidelity (colloquially known as cheating) most commonly refers to a breach of the expectation of sexual exclusivity. Infidelity can occur in relation to physical intimacy and/or emotional intimacy. The impact of infidelity is said to be not only about sex outside the relationship, but also about trust, betrayal, lying and disloyalty. Sexual infidelity by a marriage partner is commonly called philandery, adultery, or an affair. What constitutes an act of infidelity varies between and within cultures and depends on the type of relationship that exists between people. Even within an open relationship, infidelity may arise if a partner in the relationship acts outside of the understood boundaries of that relationship. Emotional infidelity is emotional involvement with another person, a process which leads one's partner to channel emotional resources, such as romant...