Ok, the results. You partner and his
mistress are clearly not infected with Syphillis.
Your result tells you that you are. Whilst not common, some test can give a false results, testing these days are highly accurate. The test you had was a Treponema pallidum particle agglutination assay (TPPA). The VDRL just refers to the Venereal disease research laboratory testing.
What I would say to you is continue any medication you are on, and go for your confirmatory test in 4 weeks time.