Fun fact of the day: Newton was a life-long virgin.
I heard he was integral with Leibniz.
So he claimed. What we know for certain is that he never married. This was the standard in his day for college instructors. The job was too difficult and time consuming to allow for the responsibilities of raising a family.
It may be true that he was celibate, in the sense of abstaining from all sexual intercourse. That might explain his incredible powers of concentration and keen intellect.