Did she cheat......?

A few years ago my mrs aged 49 worked at a local company she always wore nice skirt and low top,underneath she wore a thong and matching bra,only 5 guys with the boss and a female who was part time worked there,she always went to work in holdups or stockings to and awhile after she left a guy i know was slightly pissed and told me that there were a lot of rumours about her and the boss,I took this with a pinch of salt until he told me that she was crying one day and told the boss that we had an argument,the boss took her out to comfort her and they came back 2 hours later,i didnt know any of this and he also said that a guy who worked there with him had saw her adjusting her top in the bosses office and it looked like he was doing up his flies they used to go out in separate cars within 5 minutes of each other and return within 5 minutes of each other,then one day she came in full of hell and eventually left 2 weeks later,i wonder if she cheated or not ......