My apologies if this has been debated previously
Lets say you've known a limber dancer at least 5 years and whenever y'all see each other in the club, y'all fuck in the club every single time, no condom. for 5 years, no problems whatsoever and she doesn't even formally charge you money, she accepts any complimentary cash you give her without looking at it and she doesnt complain, as she considers you 2 friends. she wont stop till you cum. And after you cum, she shows you love; doesnt just bounce. And she doesnt phone stalk you with texts or requests. you have her cell # and She's on your Facebook.
One night you see her at the club, y'all fuck, no condom which is crazy, but this is how y'all do and been doing 5 years. And this one time you catch a very mild curable STD from her that only shows up days later.
Question is: do you mention it? You have her contact info. Or do ya let it slide, because 5 yrs in a row is her track record. And she accepts any cash you give without trippin' because she considers y'all pals. Even on days you just slip her a single $20 because that particular night you happened to bump into each other late in the night after you done spent all yo funds on other dancers. She's always understanding. Always good peoples. No shadyness from her, ever. Do you report she gave you a mild 'temporary' STD? If no, do you ever mention it to her, ever?
If you do mention it, do you think your relationship changes from that point? Any thoughts?

Yes, you do tell her. So she can get herself checked.
Assuming this is anything but fantasy, that is.