You have recently come across an extremist person who has an all or nothing kind of mentality, someone who is very black and white in their thinking, and who doesn’t know temperance in anything in their lives.
This person is a severe workaholic who has been pouring all of their water into a single glass - and that glass is now starting to shatter. This person would love to throw everything overboard, but isn't - and is being forced into a transition that this person would rather avoid.
He/she is feeling enormously drained, possibly on the brink of burnout, and is on top of that intentionally starving themselves. And already burdened by all this pressure, this person came across you, and you functioned like the catalyst that opened that pressure valve.
As a result, you started to see the first crack of a person who is normally like a cold emotional stone, who has been protecting themselves by cold logic. And when they met you, this cold logic started to fail, and you were like the heat that turned their internal ice into a much needed and necessary explosive scalding mist in which long-repressed memories were released.