It is relatively newer (ongoing), and a romance ('first love' kind of) manga. The girl's name is something like Michiru.. I don't remember exactly but it started with an M. She's on her way to school one day and she sees a classmate (turns out later he's younger) trying to fix his bike, so she lets him ride hers to school. And then after that he follows her around everyday and eats lunch with her and her friends, and falls in love with her for being so kind. And in the last chapter I read, they were on a ferris wheel or something and decided to think about dating only later or something like that?

I would really appreciate if anyone could tell me which manga this is! I've been looking for it for weeks now and can't find it again!

Thank you!

Could it be Toshishita no Otokonoko (HIRO Chihiro)?

Yes!! That's it!! Thank you so much!!!