Question

How did the 7 year war affect British colonial relations

Answer 1

The French and Indian War began in 1754 and ended with the Treaty of Paris in 1763. The war provided Great Britain enormous territorial gains in North America, but disputes over subsequent frontier policy and paying the war's expenses led to colonial discontent, and ultimately to the American Revolution.
(Info from: https://history.state.gov/milestones/1750-1775/french-indian-war )

Answer 2

It made disputes over frontier policy and paying the war's expense.