First Abigail finds out thanks to Junimos. Then Caroline realizes she knows, and then Pierre finds out and isn't immediately thrilled about it. This amazing mod adds a ton of great content and some very fleshed out heart events all while maintaining the charm of Stardew Valley. If you want more Stardew Valley while waiting for the 1.4 update this mod is what you want! Stardew Valley gameplay with my commentary as always!
SDVE Mod - https://www.nexusmods.com/stardewvalley/mods/3753