Definitions

par·ent (pârnt, pr-)n.
An organism that produces or generates offspring.

Sometimes a parent simply produces and is otherwise useless afterward, nothing more and nothing less.

boyfriend [ˈbɔɪˌfrɛnd]n

a male friend with whom a person is romantically or sexually involved; sweetheart or lover.

Sometimes, shit just happens, and you can't explain it.

enemy [ˈɛnəmɪ]n pl -mies

1. a person hostile or opposed to a policy, cause, person, or group, esp one who actively tries to do damage; opponent.

Sometimes, it's the person you least suspect.

Thesaurus

exhausted (adj.) - drained of energy or effectiveness; extremely tired; completely exhausted; "the day's shopping left her exhausted"; "he went to bed dog-tired"; "was fagged and sweaty"; "the trembling of his played out limbs"; "felt completely washed-out"; "only worn-out horses and cattle"; "you look worn out"