is it cowardice?

Regarding what her friend told her before they went their separate ways, Zhang Mei Xing felt really embarrassed since she never thought she was the main reason why a deviation occurred in Wang Lei's life. The latter was really not in the town-sponsored basketball team in his first year of senior high. This time, he only thought of joining due to wanting to get some quick money to treat her or buy her some stuffed toy. Although she had not heard this coming from Wang Lei's mouth, the meaningful glances Li Qiang hinted every now and then was enough proof. 

How could she not feel embarrassed? 

'We don't interact much even though we have been classmates for three years now. I also don't wear make up to touch up my appearance. How come this boy likes me so much?'