I'm looking for a yaoi manga where a boy is confessed to, I think they were both high school students. The one confessing keeps saying he is cute, but the other always denies it and says he must be lying because there is "no way I'm cute". Anyone know the title?

There are a few manga that trigger my memory with a "I'm not cute" character, but this one was the strongest of them:
Sekai wa Kimi de Mawatteru

That's the one! Thanks a bunch 😁