Was issac newton gay

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.

Sir Isaac Newton was a cold, austere and difficult man. The slightest criticism of his work drove him into a furious rage, and his life was blighted by vicious feuds with other eminent mathematicians. A hypochondriac, obsessive, neurotic homosexual, he had no friends to speak of.