Wife Was Faithful

Married 17 years. We had 3 children early and have a busy life style. We are active with our kids. My wife is very attractive and I’m proud of her. I like her to dress appealing to show her off. I demand her to wear bikini when we go swimming. I get aroused and jealous watching men stare at her.
We have several family friends due to children actives. One man near our age is always hanging out with my wife when he has the opportunity. He wants a greeting hug and a goodbye hug from my wife every time. His wife has even come to me expressing concern. I started an observing their actions. I never found any evidence of an affair.
One weekend we had left the children with grandparents. My wife and I were getting walking exercise and returned home. We showered and were on the couch. We were fondling almost going to bed to finish our foreplay. My wife had on just a t shirt no panties. The man with the hots for my wife knocked on the door. He came for a visit. I let him inside so my wife didn’t have the opportunity to go dress. We were drinking a beer. I got a work call to go unlock a gate for a delivery. I got up and got dressed. I wa a thinking, my wife was sex prepped, and may cheat when I leave. I got our camera which can record and place it near my wife unknowing to her. I escorted our friend out the door. I drove off to work but turned around and checked and saw our friend didn’t leave. I sneaked to spy and saw my wife still on the couch with nipples showing. They talked a while and then he departed. I then departed and did my work task. I returned and my wife was in bed.
I checked the camara and only had good audio. After I departed our friend went back and just walked in. Long story short he begged my wife for sex. She stubbornly refused. My wife mostly undressed and coving with only a pillow, warmed up foreplay by me, and a big strong good looking man in front of her refused. She told him she had never or will never betray the only man she has loved. She demanded him to leave and never speak to her again.
I went to the bedroom to the bed my wife. She told me what happened just like the audio I had recorded. She said we would have no friend relations with that family again. I was so proud of her. I got undressed and had to aroused her again and we had awesome sex. After we cleaned up we talked. She said no more revealing clothes or bikinis for her. She expressed her love only to me and was uncomfortable with my desire to exhibit her. She had been doing it only for me.
This event was a positive for our relationship. We had sex like newlyweds again for months. I think the friend desiring her aroused her and I get the benefit. She followed through with new wardrobe. But at night in the bedroom she gets trashy with me. I’m a lucky long married man.