Hermione might have commented that Ron had "the emotional range of a teaspoon," but that's clearly not true. When he was angry with Harry, Harry knew through Ron's body language, not a curt conversation. When Ron was excited about something, such as the Chudley Cannons or his new Cleansweep broomstick, everyone knew he [was] excited. When he wanted to get back at Hermione for kissing Krum, he did it with gusto. Ron's emotional transparency was most noticeable when he was burdened with wearing the horcrux locket. His feelings were so easily manipulated by the locket because they were so close to the surface. Ron was affected by the horcrux just like any of us would be, which just shows us how relatable his character is.
