Possessiveness its really common thing to hear about from people, for me, logically I think it is a dominant trait where by you feel protective of certain things (or probably people but not necessary) when you feel that these things or personages could potentially be taken away from you.

For jealousy, I believe it is a submissive trait whereby you develop negative thoughts towards someone who has something that you cannot have which "should" or supposed to be yours.

I do not feel jealousy or possessiveness that much. Thus, these feelings tends to linger for about 1 minute and a little bit longer if it is regarding something much more important (literally only momentous).  Everyone has their human moments where they feel things that turns out to be jealousy or possessiveness. It is totally normal if it stayed in between natural limits,with no suspicions.

I think you won’t find many INTJs being jealous or possessive. I'm not totally sure but that's my opinion.

I mean what's the point?

It's a waste of time (not always but like 47,3% yes)

I do find myself sensing and feeling something negative. At the beginning, I start getting this mesh of anger irritation and most of the times I get disgust(I'll talk about it later). When this happens, like everything I do stop operating accurately. I would usually pinpoint my feelings by taking a step back and assessing what I'm actually expressing and the cause which made me feel this way(over analysing stuff). After a while, I would come to the conclusion that I'm either jealous or feeling rather possessive or just been a dumb.

So, how can you tell when I am (as an INTJ) feeling jealous or possessive?

well to be honest …you really can’t when I'd take a positive spin on things. However, when I can’t think my way through it I tend to get very depressed. It is not only for these two structures also when I can't reach my aim.... Etc I'll talk about them later.

You find an INTJ bother about it?

Okay when you see that an INTJ is stuck on something. Jealousy or possessiveness or something else has been long gone by now. Instead, they get stuck on something a little bit deeper I mean really really deep (most of the time to deep for words to explain their feelings). I won't share my thoughts unless I genuinely trust you and would connivance stuffs that annoys me in you no matter what.