I'm looking for a shoujo manga where the girl confessed to the guy but he rejects her because he already had a girlfriend whose his childhood friend. He likes the main girl but he feel like he has to protect his girlfriend because of an accident that happen a long time ago. In the end he let go of his childhood friend and dated the main girl.

Is it Silent Kiss?

Be kind or get banned

It might be Mune ga Naru no wa Kimi no Sei?

Twinkle Stars?