Would I be a bad person for not going to my cousins house to tell them they have mold?

Anonymous
This was over a year ago but I was on Facebook and my cousins wife posted before and after photos of their bathroom. They remodeled it. I noticed on the after photo there was water damage on the floor. I messaged my cousin and told him. I also messaged his wife and told her. I guess she thought I was a fake profile because she sent a screen shot of the message I sent her to my mom. My mom talked to me and she confirmed that the message was real. My cousins wife denied that they remodeled the bathroom even though I know they did then she unfriended me on Facebook. I then deleted the message I sent my cousin because I thought I was in the wrong, so I never told me cousin. I sent my cousin a message on Facebook. If he doesn't respond then should I go over to their house and tell them? I would feel super awkward doing that because we aren't very close.
Would I be a bad person for not going to my cousins house to tell them they have mold?
5 Opinion