Question:meaning of 'reality intrudes'?

Question

With the television cameras trained tightly on Mrs. Clinton on stage and former President Bill Clinton in a V.I.P. box, Mrs. Clinton smiled broadly at times and punched the air with ferocity during the tough talk against Republicans, while Mr. Clinton lovingly looked on tight-lipped. And yet, reality intrudes: many of her top fund-raisers said this week that they were still refusing to work for Mr. Obama and were angered by their treatment at the convention.

question:meaning of 'reality intrudes'

Answer 1

I'll go straight to the question without reading details---

"reality intrudes"---

truth hard to digest

or

unacceptable reality

or

unwanted facts