Fall (squarely) on (someone's) shoulders informal verb phrase
If something falls (squarely) on someone’s shoulders, it is the responsibility that one have to take.
When my parents passed away, taking care of the kids fell on my shoulders.
When the director is away, the management of the company falls on my shoulders.
Today is a busy day. Linda is sick, so all her work falls squarely on my shoulders.
I can't understand why all the blame fell on Jin's shoulders.
Being looked after or protected by someone
It is used to tell someone that it is time for them to take action or make a decision.
To give someone a particular responsibility or duty
Used to indicate the responsibility belongs to someone, normally a negative one.
The verb "fall" should be conjugated according to its tense.
people often do irrational or foolish things when they are in love.
I and my boyfriend have decided to get married in the summer. I don't think that's wise, since we won't have enough money saved by then to set up house. But then, one cannot love and be wise.