Hello, im looking for a particular shoujo manga that had wedding scene in first chapter. The male lead and female lead were at their first loves' wedding ceremony. They got into a disagreement(?) and found out they were in the same school later on.

Please help!

Is it Anta Nante Okotowari?

"The great man is he who in the midst of the crowd keeps with perfect sweetness the independence of solitude." - from Self-Reliance by Ralph Waldo Emerson

Yes, that's the one! Thank you 😀