Is it my fault what my husband did?

i told my sister to flirt with my husband just to see what he would do. because i felt that he's always eyeing her. i actually thought he would pass the test, but instead he failed miserably. he actually thought she was serious and he said very disgusting things and exposed himself to her. I was not expecting him to do this. Now i feel like i should get a divorce! and i"m soo embarred that my family feels i married a loser