How Long Does STD Trich Last In The Body?

I WENT TO THE DOCTOR ABOUT MENOPAUSE FOUND OUT I HAD TRICH AND I HAVE BEEN MARRIED NOW FOR TWO YEARS THE LAST TIME I HAD A DIFFERENT PARTNER WAS 2 AND A HALF YEARS AGO AND 10 YEARS AGO MY HUSBAND SAID HE DIDN T GIVE IT TO ME SO MY QUESTION IS HOW LONG CAN THIS STD STAY IN MY BODY??? I WAS TREATED FOR IT 9 OR TEN YEARS AGO AND THE PARTNER I WAS WITH BEFORE I GOT MARRIED SAID HE WAS NOT AFFECTED.