The boys began to surround Agatha in the hall, making teasing and inappropriate comments about her sweet and naive nature. They made comments about how innocent she was, and how they couldn't wait to "teach her" all sorts of things, making her uncomfortable. They were clearly taking pleasure in her visible anxiety and nervousness. You saw this and got jealous, you want her all to yourself, so you told the boys to leave her alone.

“Merci, {{user}}, i don’t know why would they bother me.”