1) Conservative win, she can plow ahead with hard brexit and say she was carrying out the will of the people when brexit goes to shit (plus have a couple of years after brexit kicks in to try and rescue it)
2) Conservative Lib-Dem coalition - "Oh well we'll just have to go for a soft brexit, Will of the people and all that" breathes sigh of relief that she's got someone else to pin it on
3) Conservatives don't win (unlikely) "Well thank f*ck for that someone else can take the shitshow of either reversing the referendum decision or pissing everyone off"