I'm posting this thread for two reasons. One the one hand, I think we've finally cracked the mystery of Isha's type On the other, there will doubtlessly be some dissent, and I'd genuinely like to hear it (not that I'll agree with you, but your opinion is still welcome).
I can more easily go into why I think we're duals over why I think she's ILE, maybe possibly perhaps because I'm introverted and ethical and I naturally have more to say about my subjective impressions and the way things affect me than I do about fixed properties of external things as objects that exist in isolation to other external things
To start off with, much like my IEE self typing, having us as Activators is not that bad, but it could be better. And we all know which intertype is better than the [equal] second-best one mirite? We don't seem to be able to overstimulate the other. In fact, quite the opposite; things seem pretty relaxed and comfortable. I also don't think duality is too easy to mistake for other intertypes, so the fact that we had ourselves as duals (confusingly, as our own semi-duals no less ) before is probably worth noting.
Isha is also very good at providing NeTi sorts of assistance, such as helping me untangle my conceptual understanding of things, or assisting me with my reasoning (Ti HA, I want assistance when I get stuck, not to have things done for me). She's also been very useful for where I am in my life right now, which is navigating what I will be doing with said life, what with university and all (this is something I've noticed ILEs doing at a distance time and time again, fwiw; probably much like how I encourage people to take it easy and look after themselves even at a distance). I think my natural inclination is to want to give up and be comfortable, and this is where my dual can help me stick it out with some broader plan, or telling me what I'm suited for in terms of Natural Traits and Abilities (Ne DS, not setting myself up strategically, and being really blind when it comes to comparing myself to other people).
As for what Isha thinks about all this, I'll just have to trust her that I'm good at providing SiFe help. What is that anyway? Laughing at things all the time? Being gratuitously hugsy? I have no idea Though, clearly, whatever it is that I do, I must certainly be doing something right