Swinging is not cheating and it is not replacing your current partner with somone else. Swinging is bringing a 3rd (or 4th or 5th or 10th) party into your bedroom for a little extra fun, stimulation and excitement for your SHARED ENJOYMENT AS A COUPLE.
If Mrs New was to cheat on me or to lose interest in me and start looking for a new mate, I would be extremely hurt and jealous. However if we both agree to bring in another male or female or couple into our bedroom and agree on all the parameters of how it will take place, it is usually a big turn-on to see each other in action with someone else.
Do you see the difference?
What makes all the difference in the world is whether both people agree on it and it is done for the MUTUAL benifit of the couple's sexual experience together as opposed to one person stepping out of the relationship for their own benifit at the expense of the excluded partner.
Do you see the difference?
If you do understand the difference fully, then maybe you can start making some steps forward.
If you do NOT see the difference and still think that any kind of outside sexual contact is adultry and wrong or will make either one of you uncomfortable and jealous, then you are not at a place to try any kind of swinging yet.