I'm sure you are very proud of yourself. However what you did wasn't "swinging", it was cheating. You, sir, are a perfect example of why most single men in this lifestyle are thought of as pigs.
I'd tell you that you should be ashamed of yourself, however I'm sure you aren't - which makes it worse. You've cheated on your wife. You've broken your solemn vows and betrayed her trust.
Further, you've also made the other couple (unknowingly) a party to your infidelity. Your deception is reprehensible.
If you came here to get "applause" then you've come to the wrong place. You are a cheater and a liar, and any real swinger would cast you to the curb as fast as yesterday's garbage.