Isaac newton gay

The only reputable work that claims Newton as a homosexual is the book Sir Isaac Newton: Brilliant Mathematician and Scientist: (by Natalie M. Rosinsky) Even this book admits that there is no hard evidence - it simply says "their letters suggest that their affection for one another was romantic.".

There is a narrative travelling the Internet now that Sir Isaac Newton was actually gay, had a lifelong relationship with another man, and had a mental breakdown when said relationship ended. And of course, a counternarrative that that was just a friendship, and Newton was too Puritan for that.