GW...part of this article is tough for me tom apply to my sitch since I've never met or even spoken to my EA (although it certainly was going in that direction)

I was drawn in by a respectful friendship, his emotional availability to me, and my admiration for him as a single Dad. Did not expect a 20 year age difference!!!

But... Here's the rest which may be more applicable to your W...
Helen Fisher seems to be a real expert on this topic... Dr.Danial Amen's book explains how to use supplements to overcome physical withdrawal from PEA.
But, your wife has to realize she is "under the influence" which creates alot of fantasy in her head that's not real ...

In my case, the EA broke a deep dark depression of 3 years, so my IC is also pointing out what a pay off that was for me. DEEP Sh!t !!

Here goes:

Body secretions play a major role in the onslaught of love. In results published in February 2007 in the Journal of Neuroscience, researchers at the University of California at Berkeley demonstrated convincingly that women who sniffed androstadienone, a signaling chemical found in male sweat, saliva, and semen, experienced higher levels of the hormone cortisol. This results in sexual arousal and improved mood. The effect lasted a whopping one hour.

Still, contrary to prevailing misconceptions, love is mostly about negative emotions. As Professor Arthur Aron from State University of New York at Stonybrook has shown, in the first few meetings, people misinterpret certain physical cues and feelings - notably fear and thrill - as (falling in) love. Thus, counterintuitively, anxious people - especially those with the "serotonin transporter" gene - are more sexually active (i.e., fall in love more often).

Obsessive thoughts regarding the Loved One and compulsive acts are also common. Perception is distorted as is cognition. "Love is blind" and the lover easily fails the reality test. Falling in love involves the enhanced secretion of b-Phenylethylamine (PEA, or the "love chemical") in the first 2 to 4 years of the relationship.

This natural drug creates an euphoric high and helps obscure the failings and shortcomings of the potential mate. Such oblivion - perceiving only the spouse's good sides while discarding her bad ones - is a pathology akin to the primitive psychological defense mechanism known as "splitting". Narcissists - patients suffering from the Narcissistic Personality Disorder - also Idealize romantic or intimate partners. A similar cognitive-emotional impairment is common in many mental health conditions.

The activity of a host of neurotransmitters - such as Dopamine, Adrenaline (Norepinephrine), and Serotonin - is heightened (or in the case of Serotonin, lowered) in both paramours. Yet, such irregularities are also associated with Obsessive-Compulsive Disorder (OCD) and depression.

It is telling that once attachment is formed and infatuation gives way to a more stable and less exuberant relationship, the levels of these substances return to normal. They are replaced by two hormones (endorphins) which usually play a part in social interactions (including bonding and sex): Oxytocin (the "cuddling chemical") and Vasopressin. Oxytocin facilitates bonding. It is released in the mother during breastfeeding, in the members of the couple when they spend time together - and when they sexually climax. Viagra (sildenafil) seems to facilitate its release, at least in rats.

It seems, therefore, that the distinctions we often make between types of love - motherly love vs. romantic love, for instance - are artificial, as far as human biochemistry goes. As neuroscientist Larry Young’s research with prairie voles at the Yerkes National Primate Research Center at Emory University demonstrates:

"(H)uman love is set off by a “biochemical chain of events” that originally evolved in ancient brain circuits involving mother-child bonding, which is stimulated in mammals by the release of oxytocin during labor, delivery and nursing."

He told the New-York Times ("Anti-Love Drug May Be Ticket to Bliss", January 12, 2009):

“Some of our sexuality has evolved to stimulate that same oxytocin system to create female-male bonds,” Dr. Young said, noting that sexual foreplay and intercourse stimulate the same parts of a woman’s body that are involved in giving birth and nursing. This hormonal hypothesis, which is by no means proven fact, would help explain a couple of differences between humans and less monogamous mammals: females’ desire to have sex even when they are not fertile, and males’ erotic fascination with breasts. More frequent sex and more attention to breasts, Dr. Young said, could help build long-term bonds through a “ cocktail of ancient neuropeptides,” like the oxytocin released during foreplay or orgasm. Researchers have achieved similar results by squirting oxytocin into people’s nostrils..."

Moreover:

"A related hormone, vasopressin, creates urges for bonding and nesting when it is injected in male voles (or naturally activated by sex). After Dr. Young found that male voles with a genetically limited vasopressin response were less likely to find mates, Swedish researchers reported that men with a similar genetic tendency were less likely to get married ... 'If we give an oxytocin blocker to female voles, they become like 95 percent of other mammal species,' Dr. Young said. 'They will not bond no matter how many times they mate with a male or hard how he tries to bond. They mate, it feels really good and they move on if another male comes along. If love is similarly biochemically based, you should in theory be able to suppress it in a similar way.'"

Love, in all its phases and manifestations, is an addiction, probably to the various forms of internally secreted norepinephrine, such as the aforementioned amphetamine-like PEA. Love, in other words, is a form of substance abuse. The withdrawal of romantic love has serious mental health repercussions.

A study conducted by Dr. Kenneth Kendler, professor of psychiatry and director of the Virginia Institute for Psychiatric and Behavioral Genetics, and others, and published in the September 2002 issue of Archives of General Psychiatry, revealed that breakups often lead to depression and anxiety. Other, fMRI-based studies, demonstrated how the insular cortex, in charge of experiencing pain, became active when subjects viewed photos of former loved ones.

Still, love cannot be reduced to its biochemical and electrical components. Love is not tantamount to our bodily processes - rather, it is the way we experience them. Love is how we interpret these flows and ebbs of compounds using a higher-level language. In other words, love is pure poetry.