Not know whether to laugh or (to) cry spoken language phrase
To feel amused, shocked, and upset simultaneously due to the occurrence of an unanticipated tragic or unlucky event.
When I found out that I had been rejected for being too excellent, honestly, I didn't know whether to laugh or cry.
When Mary told me her boyfriend had dumped her for being too untidy, honestly, I didn't know whether to laugh or cry.
be confused about what to do
Being so scared, confused, and astonished that you can't think or do anything.
Unsure or confused.
Not able to focus on something or feel confused because of being shocked or surprised
To cause someone to feel confused, worried, or upset
This expression dates from the nineteenth century.
Meaning absolutely certain or without a doubt
I am as sure as God made little green apples that Peter's the one for you, you two make a beautiful couple.