I totally agree, the sexiest part of someone is always the mind, with, generally, the eyes coming in second place for me. But it's not so much the eyes as the expression, the body language, the sense of being able to get a sense of what is going on inside, any step towards being able to "see" inside, to know and understand what is happening
Which is what I try to offer you when I offer feedback, on the theory that you also want to know what is going on here, and what is happening.
I am not sure where it came from, but just reading the ideas for why the two wedding rings, for both men, my mind instantly jumped to the thought that Mike had asked for a loan, back when he wanted to propose to Jackie, the woman both men desired in their own way, and when asked by his best friend Jack, jokingly, what he was planning to offer up as collateral, the obvious answer to a (probably slightly drunk) Mike was to offer up Jackie herself as collateral.
I can just see two men, on their own, slightly drunk, very good friends, enjoying the in joke of using the wife to be as the collateral for the loan to buy the wedding ring. Then, as these in jokes sometimes do, the joke grew over time, leading to the joke that Jack needed a wedding ring himself, as part of his claim on the collateral. Throw in a "you would never dare" or a couple of "go on, I dare you, it would be funny", along with Jack realising slowly just how much he is coming to love Jackie, and how he wished that he was the one she had chosen, the idea slowly grows, until it seems natural between the two of them for Jack to end up with his own wedding ring.
Of course, with this "constant claim" on the collateral, there is no rush or urgency for Mike to pay Jack back, since in Jack's mind, in a private little corner, while the loan has not been repaid, Jackie is always just on the verge of becoming his...
Which, in a way, actually explains his overly polite, gentlemanly and careful way around her, not wanting to scare her off, or ever tip her of to the little ongoing "in joke", the one that spilled over into his work life, and that got completely away from him.
For the idea of Mike being sterile, an illness seems more reasonable than an injury, simply because I would half expect any injury that had this effect to leave tell tale scars that Jackie would be well familiar with, thus bringing the point up and confirming her suspicions.
Another angle on this, if both men know that Jackie has a "secret" desire to have children, and Mike always kept this a secret from her, not wanting to ruin his chances with the woman he was falling for, it would tie into the whole running joke of collateral, and making sure that Jackie would get something out of it that she wanted if / when she was "collected" in place of the debt owed.
It's a bit unexpected, but to me this makes more sense than the other suggestions for explaining the duplicate wedding rings.
I do have a strong sense of Jackie being in two minds here, of her having two major sides to her personality. You have always shown her as a fairly strong willed and determined woman outside of the bedroom, look at when Jack wanted to take her out for a date, and she made him reschedule and ask her properly. At the same time, once in the bedroom, once in her submissive role, Jackie really is a deeply submissive woman, but she *needs* to be put in that place, to have control *taken* from her, rather than offering herself up as a sex object.
Which makes the whole presentation of her, on this holiday, as the professional woman around the house and sex slave in the bedroom (idealised male fantasy) surprisingly accurate and close to the truth.
I find myself wanting to take a different approach with Tammy. I didn't notice, don't remember, anything that would really justify Tammy disliking Jackie so much from their house meeting. But, instead, remember that Tammy is Jack's boss, she is preparing him for something big, but something that will still keep him working under her in the company, she wants to make sure that she, not Jackie, is the one with the power in her relationship with Jack.
She clearly has a very good idea of the reality of the situation, but the key question for her is who is in charge, Jack or Jackie? Jackie has been given the power to ruin, and thus the power to control Jack, all due to Jack getting himself into this position to begin with. So, going forward, if Jack is going to progress, and his performance is going to reflect well on Tammy, then Tammy and Pete have to be *sure* that they have Jackie under control, that Jack will be the one in charge in their ongoing relationship.
Ongoing relationship since I find I have the sense (memory?) that the company require senior managers to have a partner, preferably to be married, due to the social aspects of the job, the meet and greet, winning over important clients, etc. So either ensure that Jackie fulfils this role, under their careful control and monitoring, or discard the very promising and potential filled Jack.
All of which would make it make even more sense for Jackie to find herself being "offered around" a bit more, especially as Jack is being "subtly" nudged to take a more dominant and commanding hand with his "wife".
I am also familiar with the concept that you cannot get someone to do anything they would not normally do via hypnosis, but I do remember seeing one film where this point was throw aside, by explaining that you can get someone to do just about anything at all with hypnosis, simply by presenting them with the right situation and pressures. Jackie would normally never be unfaithful, but if she is "required" to act and embrace the roll of the submissive sex slave wife, then she is not being unfaithful is she, she is simply following her husbands wishes, following her wedding vows...