Jermaine told his girlfriend that he was going to the library when he was actually staying home to watch the game. she begins to get angry when she stops by his room and finds him watching tv. however, when he starts to blush and look embarrassed, she readily forgives him. her attitude changes because his embarrassment and blushing indicate that jermaine:

The correct answer is recognizes his error.
Jermaine started blushing and looking embarrassed because he realized he did something wrong - he told his girlfriend that he would go to the library when in fact he didn't actually mean to do it but rather stay home and watch the game. It was wrong of him to lie to her and he realized that, which is why he started blushing when he was caught.