It is either "low self esteem" or a high tolerance level", it really depends on the character Jacinta is. Is she was shy and quiet to begin with before she moved into the neighborhood, she will likely suffer low self esteem and feel as though no one likes or approves of her. If Jacinta has a strong and positive character, she with gain a high tolerance level due to the discrimination she faces, allowing her to take insults and rude gestures in a positive manner.