One builds strong frame, is it possible it can be lost/broken in the future no matter how strong it is? Or does it mean the person never really had frame?

I noticed that growing into a LTR makes me go softer and break frame/live in others' worldframe, in other situations too I care too much about people, it's frustrating.

I'd say I have an out of control Borderline disorder but it's not ever been professionaly diagnosed with criteria, just an assumption so I see the world differently, it's all black and white and everyone has to offer either opportunities or turn their backs to certain people, I usually feel people hide their motives, and I suspect others often, this leads to tend to notice casually unnoticeable things, and go into others' worldframe subconsciously.

How to re-enforce my world frame step by step again? Seems very difficult and I'm out of focus most of the days.