I don't think i want to be this person's friend anymore.

They have ex-friends and one of them told me that my current friend exaggerates things and they are lying about their health situation.

We went to the fair two days ago and they went on a dizzy ride. It was 5 or so minutes later, and my friend wasn't dizzy. When something happened, something their boyfriend said, they told him that they're still dizzy and pretends to be dizzy (I caught that) to "prove a point."

I'm starting to think her ex-bff was telling the truth. I don't know what to do and I don't want to confront them about it.