I'm not sure. One possibility that I see - My mother becomes hyper aware of her surroundings under stress and often becomes either overly solicitous of us, doing stuff that she really doesn't need to or worried about how much she is/isn't doing. I also wonder if the guilt thing is connected to a Fe-Se loop in some way. Can't feel happy unless everyone else close is or takes on unreasonable amounts of responsibility for other's behaviour/happiness etc and feels deep unfounded guilt. I don't know if that would be Fe-Se or not. Since most types seem to have a loop, I've been curious whether ENFJs do and what it would look like. Domino said she loops through these, but didn't say in what way. My mum is the only ENFJ I am really close to, so I don't have a big pool of subjects to observe.
Since I can't seem to see how these functions could create a loop.
An Fe-Se loop would create hyper-awareness for the surrounding emotional state and values. If Fe leads, then that creates neurosis about fitting in. If Se leads, that creates an impulse towards grandiose and histrionic displays.
Most primary-tertiary loops in extroverts result in too much action without taking the time to think about anything. Without the introverted auxillary creating a drive to pause and consider what has been experienced little is learned, leading to the person repeating the same mistakes or a some other comparable afliction.
In an Fe - Se loop there is an urge to attend to social needs combined with the urge to experience things first hand and experiment. This often results in the person feeling like they have to be there for everyone at all times. It can also result in a sort of mindless fivolity (especially in Se-Fe rather than Fe-Se) in which the person excessively seeks the sensory stimulation of group activitues such as parties, sports or whatever.
Sensing is extraverted. ENFJs can manage details, particularly those necessary to implement the prevailing vision. These data have, however, a magical flexible quality. Something to be bought can be had for a song; the same something is invaluable when it's time to sell. (We are not certain, but we suspect that such is the influence of the primary function.) This wavering of sensory perception is made possible by the weaker and less mature status with which the tertiary is endowed.
It seems like a FeSe loop can be an overvaluing of things perceived through the senses. Example: these ENFJs may seem shallow, obsessed with their image and material status or maybe they adopt an ascetic attitude towards material things. It might even appear very inconsistent to others, where the ENFJ seems to value some things & not others without any discernible principles behind these feelings. Or they may indulge in hedonistic pursuits to block out their own feelings - their alone time with Ni can result in a brooding that they're trying to avoid.
I also think here is where we get the "manipulative" ENFJ people talk about. It's basically the flip of an ESTP Se-Fe loop, which is probably what is behind their used car salesman stereotype.
Fe is a thought process which is very adaptable in the sense that it accommodates the people around them, knows how to affect them, picks up on their vulnerable emotions, etc. Se is a thought process that sees tangible clues easily - it may aid in reading body language, for example. Se people will act on the immediate options they see - adjusting their approach as they go according to the sensory signals they pick up & testing what they can get away with. Combine all that with the Fe inclination to read people emotionally, and you have someone who can easily affect others. They may know how to set someone up for the response they desire. This does not have to be used for evil, but even if it is not, it can seem manipulative to people who fall for it.
I have an ENFJ friend who is definitely NOT manipulative. I would never define him with that trait, but I will say he knows how to get a rise out of someone if he wants to. This is also what can make ENFJs good at banter & teasing. I think the Se adds to the playful side & is positive when its anchored by Ni.
The Fe + Se loop may also cause an ENFJ to gauge their moral standards by whatever their current atmosphere happens to be. Everybody else does it, so it can't be that bad. Ni provides an insight beyond the moment, unveils the principles behind Fe so as to not blindly follow whatever seems good at the time.
"Charlotte sometimes dreams a wall around herself. But it's always with love - So much love it looks like everything else. Charlotte Sometimes - So far away, glass sealed and pretty." - The Cure
When Fe leads the Fe/Se loop: See Babylon Candle on Ventrillo. It's like a bad/amazing Jim Carrey Movie! All action, no real meta perspective thought. It's all about physical displays of emotion aimed at getting a rise out of other people
When Se leads the Fe/Se loop: See the typical "normal guy" ben stiller character. Just of "lives". Everyone tends to see themselves in you. You aren't really much of anything. You just sort of float about merely concerned with your satiety, safety, comfort, surroundings, tasks etc. Its not hedonistic of accomplishment oriented though, hence the Fe aspect.