A STRANGE WOMAN CALLED MY HOUSE SAYING HER HUSBAND WAS SLEEPING WITH ME -- AND MY HUSBAND BELIEVED HER!?

She blocked her phone and the guy works with my husband! My husband thinks it's true and I have no way to disprove it. He has checked my phone, my car, everything and gathered nothing. The guy also told my husband he had nothing to do with me either but my husband doesn't believe it. I have agreed to take a lie detector test per hubby's request although we can't afford it ($500) but my fear is that I will be too nervous and the results will be all screwy - here's why: Years ago when I was 15 I took a lie detector test and lied about my age to get a job working as an istant. I got the job although I lied and they did say there were some variables. That told me that the test wasn't all that accurate. Can anyone tell me if there is a way to find out who made the call? The only thing the phone company told me was to file some police report asking for disclosure - but it is very costly and a lot of red tape. Because of this problem my husband has not wanted to be close to me in over a year - not even hold my hand. I am thinking of leaving. I am so sad!!!