you have made your bed and must lie in it

(one) has made (one's) bed and (one) will have to lie in it

One must endure the unpleasant situation that they have created. I don't feel at all bad that he has no friends after having sold everyone out on his way to the top. He's made his bed, and he'll have to lie in it.
See also: and, bed, have, lie, made, will
Farlex Dictionary of Idioms.

you have made your bed and must lie in it

you must accept the consequences of your own actions.
See also: and, bed, have, lie, made, must
Farlex Partner Idioms Dictionary
See also:
  • come to a bad end
  • come to a bad/sticky end
  • England
  • close (one's) eyes and think of England
  • lie back and think of England
  • feel sick at heart
  • horse and rabbit stew
  • a sad state (of affairs)
  • get a taste of (one's) own medicine
  • a sorry state (of affairs)