I need you!

I need real people rn. I have been in many relationships. I have never been in love just like. But now I'm in love. I'm in love with the most beautiful girl in existence. Idk what to do she says I'm not showing her the love back that she is to me. We are in school most of the time. I am 18 and this is my first time being in love. I'm afraid she's gonna leave me because I don't show her love back. In school what are some things I can do to show that I love her. She is the physical type but of course not to much in school. Help I really don't want to lose her. I'm not sure how I'm not showing love im just really shy ig