It is where both partners benefit from the affair. In other words, both enjoy the time spent.
Absolutely. Republican US Senators David Vitter and John Ensign, for example, have both publicly admitted to affairs and are still in office. Former Democratic President Bill Clinton also admitted an affair and stayed in office until the end of his term; he was impeached, but the Senate voted not to convict and remove him from office.
The stages of an affair typically include the initial attraction, where emotional and physical connections are formed; the escalation, where the affair deepens and becomes more secretive; the maintenance stage, where both partners navigate their dual lives; and finally, the conclusion, which can result in the affair ending either through discovery, a decision to leave for the affair partner, or a return to the primary relationship. Each stage is marked by increasing complexity and emotional involvement.
Both partners will be very happy.
No he was divorced from them both.
No, both are heterosexuals.
the relationship benefits both species who cooperate in it
Honestly, an affair is usually due to one of two things; the lack of control by one or both partners to handle interaction with other attractive people or the result of one or both partners neglecting the other, causing the opposite partner to find or take solace in a physical affair as payback or because they find a thing that completes them within the other person as opposed to their partner. Maybe the "Art of being there" can help to prevent the neglecting of your partner and thus help to prevent cheating. A simple step, be sure to say you love them at least once a day. Remind them of why you married/started a relationship with them and spend time being all there for them emotionally.
Nope
No!They both have partners
property which is owned by both partners
It is not illegal unless you marry them both partners, this is called Bigamy.