Leona, I agree with your conclusion regarding adultry, not only because of all the emotional aspects, but also because of the STDs going around, one of which can take your life. Giving your partner an STD is the one unforgivable sin in a marriage/commited relationship.
I do disagree with your other conclusion however;
"The intensity of an orgasm depends on how horny a person is."
There are two things which increase the intensity of a woman's orgasm and they are, 1) how relaxed she is with her partner and, 2) the amount of foreplay. Women always worry about how they look and, what will he think of me in the morning, so once I've dealt with those concerns, she's relaxed and ready for generous amounts of foreplay. Videos, toys and sexy outfits are ways to spice it up in the bedroom and the more revved up she gets (now all girls know that guys are revved up as soon as the bedroom door closes) the more intense the orgasm. If I had to wait until my wife got horny to have intense orgasms (she's 49) we'd be in bed together once a month. Every person is different Leona, so this may be your experience but it's not mine.