i fell in love once, and just realize the importance of family over random sex with strangers
Stripping != sex.
If you think your wife isn't looking at men from time to time and having micro-fantasies, you are most likely dellusional. Have you ever caught yourself looking at a girls bottom in line in front of you, letting your eyes linger for a few seconds when you see someone that 'does it for you' at a pool/beach? Seen brief nudity in a movie and looked?
Going to strippers is just an extension of that, people can exchange a few dollars for a little bit of attention and get to be closer than looking from afar. Despite what people would like to think or say, it's human nature. It's animal nature. Whether it is morally right or wrong, that's up to the individual but a lot of the appeal happens on a completely primal/basal/bio-chemical level. Pornography and viewing strippers actually alters brain chemistry, dopamine is released, the pleasure centers light up like fireworks in the brain, the brain begins to change to seek such release more by pursuing similar behavior more frequently etc.