AVENGERS (1963) #109

Hawkeye cannot handle the growing romance between the Scarlet Witch and Vision. After blowing off steam in the training room, he decides to leave the team for good. But what has Hawkeye heading out to the West Coast? Wanda grows suspicious of his disappearance and convinces her teammates that the “real” Hawkeye would never leave without a proper farewell. Hawkeye quits the Avengers!