to make someone very sad
誰かの心を傷つける (dareka no kokoro o kizutsukeru)
"It really broke his heart when she left him."
"彼女が彼を去ったとき、彼の心は本当に傷ついた。" (kanojo ga kare o satta toki kare no kokoro wa hontoni kizutsuita)
staying loyal and supportive for a long time
to do something correctly after making a mistake
keep silent about a secret
to pay a very high price for something
to be very brave and bold
to be in control; to make important decisions