I understand that it has been a tough time for this person. Recently there have been many eclipses in the Leo-Aquarius axis making square the stellium in Scorpio. We can not forget that a transit of Saturn can break down the strengths of a person and here we talk especially about the very sensitive aspects such as Mercury, the Sun and Venus. With the Moon square to Neptune, Saturn's transit must have been felt as a true carnival of depression and misfortune. The sextile is not always an easy aspect, but a facilitator who also invites the evasion of the real problems. Pluto is approaching the square to its natal position, although this will happen within a few years I think it's time to approach this person to a serious therapeutic process.
Particularly, I think that the size of the houses indicates areas of life in which the events derived from the experience can be especially revealing. Scorpio is extremely susceptible and Gemini is volatile, confused in its appreciation but, being Mercury in the stellium, in a combusted state, it gives a incisive mental sensibility that can become disturbing and trigger an obstinately unstable behavior.
It is prudent to take advantage of the closeness of the Pluto - Pluto square to re-channel the person, away from victimhood and pessimism. It is a very hard square but Saturn in sextile will allow to shape what it left in the multiple conjunction.
BTW, I'm a student and maybe my assessment is not correct, I hope that someone with more knowledge wants to help you.