Would you be okay with cleaning the house of a woman who slept with your husband before you were together

My friend runs a cleaning business and two of her girls have been sick so she asked if I would help her clean this woman's house. She said she can be very particular and a bit of a Karen. I agreed to it and we were going to do the job after Christmas. However I've come to find out she's someone who used to have sex with my husband. on multiple occasions. My husband had mentioned her in the past because he mentioned having sex with a 29 year old woman when he was 17 and how he thinks back and wonders why she wanted to have sex with him because he thinks it's back to it being cringe because she once had to pick him up from school for them to hang out. So he doesn't think back fondly of her and I get it was before me but why would I want to clean the toilets of a woman who has seen my husband naked?

Edit: I'm not desperate for money at all. A friend asked me if I wanted to help. Had nothing to do with me needing money