Sweety Threatens To Commit Suicide - S1.E68

Jethalal tries to explain something to Champaklal and Daya as they believe he is having an affair with Sweety. Sweety threatens to commit suicide. Jethalal asks Nattu Kaka to prove his innocence, but something goes wrong. Bhide and Sodhi reach Jethalal's home as Bhide is suspicious about the whole situation. Champaklal and Daya get shocked when Sweety gives them the proof of their affair. What proof does she have?