I think the 'disinterest phase' is a sure-to-pass-through phase.
It's not good or bad.
For me, i may readjust the life circumstances if the situation
allows. If not, just let it be.
Actually along the way, alot of things that were very important
previously, will not be interesting anymore. Just don't fall into a
long term kind of depression.
But spiritual practices such as meditation must still carry
on.
Just my opinion.