pluto is going to transit the composite mars(which has started earlier this year... and will continue for at least a good year).
if you all can get through that,
pluto transitting the descendant and 7th house could be very interesting.
... intense and deep and all sorts of good pluto stuff, potentially, regarding the partnership
its impossible to try to wrap ones head around a pluto transit before it happens.
so, at least, might as well focus on the transit conjunct mars first.
i do think
that understanding the fact that pluto is transitting is beneficial. in order to understand that there could possibly be meaning for such a demand of change.
transformation transformation transformation.
and lots of demand to LET GO.
i find pluto to be great... just can't fight it. at all.
Also... looks like neptune will transit the composite sun before pluto hits the descendant...
..so again... there's lots of opportunity to prepare for the pluto reaching the 7th house.