A romantic affair, also called an affair of the heart, may refer to sexual liaisons among unwed or wedded parties, or to various forms of nonmonogamy.
Unlike a casual relationship, which is a physical and emotional relationship between two people who may have sex without expecting a more formal romantic relationship, an affair is by its nature romantic.
If the person you have been seeing acknowledges that you are dating but doesn't want to use words like "girlfriend" or "boyfriend," she or he doesn't consider the relationship solid -- yet.
Generally speaking, "dating" describes a less serious level of commitment before either person is ready to describe the other as a girlfriend or boyfriend.
This is not a firm rule because the terms have no strict definition.
The presence of deception may indicate the degree to which the deceiver has breached fundamental conditions of fidelity, of reciprocal vulnerability and of transparency.
Sometimes these are explicit or assumed pre-conditions of a committed intimate relationship.
Like direct, face-to-face affairs, online affairs can be spontaneous and casual and show intensive personal involvement.
However, online affairs can also be more of a planned discourse than spontaneous talk; like written letters, online messages can be stored and thus have permanent presence, which is absent from face-to-face affairs.
Words like "girlfriend" and "boyfriend" are used to describe a relationship in which two people consider themselves to be a couple.
This doesn't mean they have made a long-term commitment or have agreed to be monogamous. Some people commit to seeing each other exclusively before agreeing to use labels like "girlfriend" or "boyfriend." If the person you have been seeing wants to use these terms, it means she considers you to be a couple. When people start dating during high school, they are usually trying to have fun and learn about relationships.
In online affairs, people try to enjoy the benefits of both close and remote affairs, while avoiding their flaws.
People enjoy the highly valued products of close affairs while paying the low cost of remote affairs.
This occurs quite often and eventully leads to something called cheating.