Maybe it isn't worth it for you in the end after that conversation, but we should also not assume that the only way you get HIV is through "risky" behavior. That is irresponsible.
At least you would know it's an option and you can make the decision yourself, I know a lot of straight people that do not know prep exists because it just isn't talked about. Or maybe they have heard about it but they don't really understand what it is. That is a problem.