Si-doms often want to stay within what is ‘familiar’ to them; what they are ‘used to,’ and what has ‘worked in the past,’ so they push away from lower functional development. This creates the rigid reputation most fictional Si-doms are known for, where they are staunchly against change / anything new.
Unlike the INXJs, who need Se as an anchor to stay rooted in reality, ISXJs need Ne in order to consider moving beyond their comfort zone / what they grew up with. When a Si-dom ignores their second function and loops into Ti, they either get stuck analyzing the past and/or rationalizing (poorly) as to why they can’t try new things and backing up the decisions they make (centered on ‘being safe’) rather than on truly analyzing their motives, intentions, and decisions for logic. Like the INFJs, they become locked in an endless loop of feeble justification and only gathering
weak logical ‘arguments’ to justify their Si-dom perceptions. They
will come up with “logical arguments” to excuse any problematic
behaviors instead of admitting to, confronting, and dealing with them.
When
someone does not want to use Ti properly, they become indecisive,
insecure, super critical of others, and hate critical feedback – because
the goal is self-preservation rather than self-improvement.
In
a loop, an IXFJ becomes stubborn, refuses to admit to being wrong
and/or change wrong ideas, perspectives, or conclusions, lacks empathy
for others while believing themselves morally superior and/or a “good
person”; projects their own fears, insecurities, and motives onto people
in the outside world, and is prone to negativity, bitterness, and
cynicism about people and their motives; only accepts other people who
are in agreement with their views, and struggles to develop or maintain
healthy relationships (despite wanting them). The ISXJ may use
manipulation to get what they want (shallow Fe) but become highly
protective of and defensive over their ‘knowledge’ and try to one-up
others.
Si/Ti loops fail to move on from past events or and refuse to see any other perspective other than their Si perceptions; thus they will ignore any external evidence that challenges, threatens, or tries to re-frame their concept of former experiences, relationships, mistakes, or decisions. (For example, an ISFJ may decide the reason Ted stood up Nancy is because Ted is seeing someone else behind Nancy’s back; a Si/Ti looper would start analyzing all their past interactions with Ted and finding only evidence to support this conclusion; it would ignore his statement that he stood her up because he had an unexpected emergency with his dog. In a loop, not only is Fe missing in action – the function that would be tolerant, understanding, and want to talk things through with Ted, but Ne is absent also, so it wants to stick with the one stubborn conclusion it reached, built out of paranoid lower Ne in the first place: cheaters stand you up, the last time I got stood up, my ex cheated on me.)
Si/Ti loopers will concoct complicated and irrational “reasons” to avoid moving beyond their personal comfort zone or confront their deeper fears; but they will also suffer unhappiness because of it, because their inferior Ne will make them fearful that they are missing out on maturing, making progress in life, or having new experiences. They become socially isolated and miserable, since their Si/Fe wants to work together to impact people’s lives in the present, and when they are in a critical, fearful loop, they cannot connect to other people.
To break the loop, you need to work on utilizing Fe;
in communicating openly with others, in tapping into and sensing their
emotional needs before they tell you, in honestly listening to them
without judgment, in thinking in terms of ‘for the greater good of
everyone involved,’ in airing your feelings, in being open to intimate
emotional relationships, in learning to consider each life as being
equal in importance to another, in learning how to communicate in
non-insulting ways that energize rather than demean people, etc.
There are plenty of self-help books, books on communication, etc. =)