落胆: discouragement

the result, effect, consequence / the performance, the accomplishment, the achievement

(rare) bear fruit

(university slang) course that be got credit easily

be disappointed

disappointment

short (cause a short circuit) / connect (associate) hastily

short, short circuit / a leap in logic (that skips steps), a jump to a conclusion

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend